《纳米研究》2022年第3期目录
Carbon
Near-infrared carbon nanodots for effective identification and inactivation of Gram-positive bacteria
Wen-Bo Zhao1, Rui-Ting Wang2, Kai-Kai Liu1,*, Meng-Ru Du1, Yong Wang1, Yu-Qi Wang1, Rui Zhou1, Ya-Chuan Liang1, Ruo-Nan Ma1, Lai-Zhi Sui2, Qing Lou1, Lin Hou2,*, and Chong-Xin Shan
1 Zhengzhou University, China
2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
The carbon nanodots (CNDs) with near-infrared (NIR) absorption/emission are prepared using perilla as precursor, which can identify and inactivate Gram-positive bacteria effectively, and the antibacterial efficiency can reach to 99.99%. The CNDs can be used for elimination inflammation of the area affected by methicillin-resistant Staphylococcns aureus (MRSA), enabling the wound to be cured quickly.
1699–1708
Carbon nanotube-dependent synthesis of armchair graphene nanoribbons
Yifan Zhang1, Kecheng Cao2,3, Takeshi Saito4, Hiromichi Kataura4, Hans Kuzmany5, Thomas Pichler5, Ute Kaiser2, Guowei Yang1,*, and Lei Shi1,*
1 Sun Yat-sen University, China
2 Ulm University, Germany
3 Shanghai Tech University, China
4 National Institute of Advanced Industrial Science and Technology, Japan
5 University of Vienna, Austria
The width of the synthesized armchair graphene nanoribbons can be tailored by the diameter of the carbon nanotubes as hosts, as unraveled by using Raman spectroscopy and transmission electron microscopy.
1709–1714
Single-atom Zn for boosting supercapacitor performance
Zongge Li1, Danni Wang2, Huifang Li5, Mang Ma1, Ying Zhang1, Zifeng Yan1, Stefano Agnoli4, Guoxin Zhang2,*,and Xiaoming Sun3,*
1 China University of Petroleum (East China), China
2 Shandong University of Science and Technology, China
3 Beijing University of Chemical Technology, China
4 University of Padova, Italy
5 Qingdao University of Science & Technology, China
A heavily Zn (~ 2.35 at.%)/N (~ 12.43 at.%) co-doped porous carbon material was elaborately designed and synthesized, affording a specific capacitance of 621 F·g−1, superior rate capability and cycling stability. In-situ Raman study and density functional theory (DFT) simulation reveal that atomically dispersed Zn enhances the pseudocapacitance of N-doped carbon via beneficial absorption of OH−.
1715–1724
Self-pumping ultra-thin film evaporation on CNT-embedded silicon nitride nanopore membrane
Runkeng Liu and Zhenyu Liu*
Shanghai Jiao Tong University, China
It is found that a self-pumping water transport through the nanopore can be realized, which is attributed to the driving force induced by the evaporation meniscus of thin water film above the nanopore. The carbon nanotube (CNT) can be utilized as the coating inside the silicon nitride (Si3N4) nanopore, which contributes to both the flow resistance reduction and the mechanical strength improvement.
1725–1729
Catalytic
Review Articles
Design concept for electrocatalysts
Yao Wang, Xiaobo Zheng, and Dingsheng Wang*
Tsinghua University, China
Regulating the coordination environment of active sites with precision to rational design an efficient electrocatalyst (SACs, nanocluster and nanoparticle) is of great significance for boosting electrocatalytic reactions.
1730–1752
Rational design of Fe-N-C electrocatalysts for oxygen reduction reaction: From nanoparticles to single atoms
Mengru Sun1, Changli Chen1, Menghao Wu1, Danni Zhou1, Zhiyi Sun1, Jianling Fan2,*, Wenxing Chen1,*, and Yujing Li1,*
1 Beijing Institute of Technology, China
2 Guilin Normal College, China
Nanoparticles and single-atom are considered to be one of the most important types of catalytic active sites in Fe-N-C family, which are considered as effective catalysts for oxygen reduction reaction.
1753–1778
Research Articles
One-step synthesis of N, P co-doped porous carbon electrocatalyst for highly efficient nitrogen fixation
Sijia Zhao, Jin Wang, Peng Wang, Shuang Wang*, and Jinping Li
Taiyuan University of Technology, China
PN-C-ZIF-8 was fabricated by one-step pyrolysis of zeolitic imidazo-late framework-8 (ZIF-8) and triphenylphosphine (TPP) for enhanced N2 reduction.
1779–1785
In-situ transient photovoltage study on interface electron transfer regulation of carbon dots/NiCo2O4 photocatalyst for the enhanced overall water splitting activity
Haodong Nie1, Yan Liu1, Yi Li1, Kaiqiang Wei1, Zhenyu Wu1, Hong Shi1, Hui Huang1, Yang Liu1,*, Mingwang Shao1, and Zhenhui Kang1,2,*
1 Soochow University, China
2 Macau University of Science and Technology, Macau, China
The carbon dots/NiCo2O4 (CDs/NiCo2O4) composites show weakened recombination rate of photogenerated carriers due to charge storage of CDs, which enhances the photocatalytic water decomposition activity without any scavenger.
1786–1795
AuPt bimetallic nanoalloys supported on SBA-15: A superior catalyst for quinoline selective hydrogenation in water
Jianbo Zhao1,*, Haifeng Yuan1, Guang Yang1, Yingfan Liu1, Xiaomei Qin1, Zheng Chen2,*, Cheong Weng-Chon3, Liming Zhou1, and Shaoming Fang1,*
1 Zhengzhou University of Light Industry, China
2 Anhui Normal University, China
3 University of Macau, Macao, China
Herein the surface-clean Au-Pt bimetallic nanoalloys with uniform size confined within the mesopores of SBA-15 (Au5Pt1@SBA-15) were prepared by facile adsorption-reduction method and found to exhibit much higher activity than monometallic Au@SBA-15 and Pt@SBA-15 catalysts with excellent selectivity towards 1,2,3,4-tetrahydroquinoline for quinoline hydrogenation in water under very mild conditions. The unprecedented performance was related to the synergetic cooperation of Pt sites with high electron density for H2 dissociation and Au sites for the adsorption of quinoline.
1796–1802
Atomic CoN3S1 sites for boosting oxygen reduction reaction via an atomic exchange strategy
Qianjun Zhi, Rong Jiang, Wenping Liu, Tingting Sun, Kang Wang*, and Jianzhuang Jiang*
University of Science and Technology Beijing, China
Atomic CoN3S1 active sites integrated into porous carbon exhibits outstanding electrocatalytic activity for oxygen reduction reaction with a large half-wave potential of 0.901 V vs. reversible hydrogen electrode (RHE) in 0.1 M KOH.
1803–1808
Activating interfacial S sites of MoS2 boosts hydrogen evolution electrocatalysis
Shuo Geng1, Fenyang Tian1, Menggang Li1, Yequn Liu2,Jie Sheng1, Weiwei Yang1,*, Yongsheng Yu1,*, andYanglong Hou3,*
1 Harbin Institute of Technology, China
2 Institute of Coal Chemistry, Chinese Academy of Sciences,China
3 Peking University, China
Ru-MoS2was synthesized as the model to demonstrate that the interfacial S at in-plane can be activated by tuning the electronic structure of S through forming the Mott-Schottky contact and adjusting the p-band center of the S atoms.
1809–1816
Single site catalyst with enzyme-mimic micro-environment for electroreduction of CO2
Chang Long1,2, Kaiwei Wan2,3, Xueying Qiu1,2, Xiaofei Zhang1,2,Jianyu Han2,3, Pengfei An3,4, Zhongjie Yang2,3, Xiang Li2,3, Jun Guo2,3, Xinghua Shi2,3, Hui Wang2,3, Zhiyong Tang2,3, and Shaoqin Liu1,*
1 Harbin Institute of Technology, China
2 National Center for Nanoscience and Technology, China
3 University of Chinese Academy of Sciences, China
4 Institute of High Energy Physics, Chinese Academy of Sciences, China
By mimicking natural enzyme pocket, Co single site catalyst is successfully prepared by a facile click reaction strategy. Benefiting from the interaction of the week interaction between absorbed *COOH intermediate and triazole around the active site, the Co single site catalyst exhibits much improved activity in CO2 electroreduction compared with its counterpart without enzyme-mimic structure.
1817–1823
Open N-doped carbon coated porous molybdenum phosphide nanorods for synergistic catalytic hydrogen evolution reaction
Chao Wang1, Wen Li1, Xiaodan Wang1, Nan Yu1, Hongxia Sun1, and Baoyou Geng1,2,*
1 Anhui Normal University, China
2 Hefei Comprehensive National Science Center, China
Herein the surface-clean Au-Pt bimetallic nanoalloys with uniform size confined within the mesopores of SBA-15 (Au5Pt1@SBA-15) were prepared by facile adsorption-reduction method and found to exhibit much higher activity than monometallic Au@SBA-15 and Pt@SBA-15 catalysts with excellent selectivity towards 1,2,3,4-tetrahydroquinoline for quinoline hydrogenation in water under very mild conditions. The unprecedented performance was related to the synergetic cooperation of Pt sites with high electron density for H2 dissociation and Au sites for the adsorption of quinoline.
1824–1830
Support induced phase engineering toward superior electrocatalyst
Beibei Sheng1, Dengfeng Cao1,3, Hongwei Shou1,Oyawale Adetunj Moses1,2, Wenjie Xu1, Yujian Xia1, Yuzhu Zhou1, Huijuan Wang3, Ping Wan1, Shuang Zhu1, Wangsheng Chu1, Xiaojun Wu1, Shuangming Chen1,*, and Li Song1, 3
1 University of Science and Technology of China, China
2 Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China
3 Hefei Comprehensive Nation Science Center, China
We proposed that support (single-walled carbon nanotube, SWCNT) can direct phase engineering which makes Co3O4-SWCNT as the real active phase in the electrochemical process to achieve superior oxygen evolution reaction (OER) and urea oxidation reaction (UOR) performance.
1831–1837
Cathodic corrosion as a facile and universal method for the preparation of supported metal single atoms
Rui Li1, Jingsong Xu2,*, Qingkai Zhao1, Wensheng Ren1, Rongguang Zeng1, Qifa Pan2, Xiayan Yan1, Jingwen Ba1, Tao Tang1, and Wenhua Luo1,*
1 Institute of Materials, China Academy of Engineering Physics, China
2 Science and Technology on Surface Physics and Chemistry Laboratory, China
A cathodic corrosion strategy is proposed for the top-down synthesis of metal single atoms on nitrogen doped carbon materials under a mild electrochemical environment. The as-prepared Pt single-atom catalysts exhibited a low overpotential of 0.022 V at 10 mA/cm2 toward hydrogen evolution reaction.
1838–1844
Acetate-assistant efficient cation-exchange of halide perovskite nanocrystals to boost the photocatalytic CO2 reduction
Jialin Cheng, Yanfei Mu, Liyuan Wu, Zhaolei Liu, Ke Su, Guangxing Dong, Min Zhang*, and Tongbu Lu*
Tianjin University of Technology, China
We report a facile strategy to achieve efficient cation-exchange of halide perovskite nanocrystal via the method of acetate assistance, which can significantly enhance the activity of halide perovksite for CO2 photoreduction.
1845–1852
Intermetallic IrGa-IrOx core–shell electrocatalysts for oxygen evolution
Lin-Wei Chen1,2, Fuxiang He1, Ru-Yang Shao1, QianQiang Yan1, Peng Yin1, Wei-Jie Zeng1, Ming Zuo1, Lixin He1,*, and Hai-Wei Liang1,*
1 University of Science and Technology of China, China
2 Anhui University of Chinese Medicine, China
An intermetallic IrGa core was found to be capable of largely promoting the electrocatalytic performance of IrOx shell for the oxygen evolution reaction (OER) in acidic media. The intermetallic IrGa core could optimize the electronic structures of IrOx shell towards lowering the energy barrier of the OER rate-determining steps.
1853–1860
Atomically isolated Pd sites within Pd-S nanocrystals enable trifunctional catalysis for direct, electrocatalytic and photocatalytic syntheses of H2O2
Tang Yang1, Chengyong Yang1,2, Jiabo Le1, Zhiyong Yu2, Lingzheng Bu1,*, Leigang Li2, Shuxing Bai2, Qi Shao2, Zhiwei Hu3, Chih-Wen Pao4, Jun Cheng1,*, Yonggang Feng2, and Xiaoqing Huang1,*
1 Xiamen University, China
2 Soochow University, China
3 Max-Planck-Institute for Chemical Physics of Solids, Germany
4 “National Synchrotron Radiation Research Center”, Taiwan, China
Utilizing the isolated palladium (Pd) sites on the surface of Pd-sulphur nanocrystals (Pd-S NCs), three different transformed approaches, i.e. direct, electrochemical and photochemical methods have respectively been used to achieve the highly efficient and selective synthesis of hydrogen peroxide (H2O2). To be specific, the Pd-S NCs exhibit an excellent selectivity (89.5%) to H2O2 with a high productivity (133.6 mol·kgcat−1·h−1) in the direct synthesis process. The Pd-S NCs also have much enhanced H2O2 production activity in both electrocatalytic and photocatalytic synthesis. Apart from the excellent activity, outstanding catalytic durability in the synthesis of H2O2 can still be realized with the use of nanostructured Pd-S NCs, demonstrating a versatile nanocatalyst with high catalytic performance in totally different media for the synthesis of H2O2 with high applied value.
1861–1867
Boron leaching: Creating vacancy-rich Ni for enhanced hydrogen evolution
Chao Han1, Weijie Li2, Jiazhao Wang2, and Zhenguo Huang1,*
1 University of Technology Sydney, Australia
2 University of Wollongong, Australia
Vacancy-rich Ni nanosheets have been fabricated via topochemical formation of two-dimentional (2D) Ni2B on graphene precursor followed by boron leaching. The 2D vacancy-rich heterostructure exhibits outstanding hydrogen evolution reaction (HER) catalytic activity in alkaline solution.
1868–1873
Lignin-derived Zn single atom/N-codoped porous carbon for α-alkylation of aromatic ketones with alcohols via borrowing hydrogen strategy
Xueping Zhang1, Guo-Ping Lu1,*, Kun Wang2, Yamei Lin3, Pengcheng Wang1,*, and Wenbin Yi1,*
1 Nanjing University of Science and Technology, China
2 Wenzhou Medical College, China
3 Nanjing Normal University, China
A simple, sustainable, and scalable strategy has introduced for preparing lignin-derived N-doped carbon supported Zn single atom catalyst (LCN@Zn-SAC) containing similar ZnNx sites with carbonic anhydrases, which exhibits comparable performance with noble metal catalysts for the borrowing hydrogen α-alkylation reaction. Zn sites with less positive charge (ZnN3C and ZnN4) in Zn-SACs display better borrowing hydrogen ability than other Zn sites.
1874–1881
Metal n+-Metal δ+ pair sites steer C–C coupling for selective CO2 photoreduction to C2 hydrocarbons
Weiwei Shao, Xiaodong Li, Juncheng Zhu, Xiaolong Zu, Liang Liang, Jun Hu, Yang Pan, Junfa Zhu, Wensheng Yan, Yongfu Sun*, and Yi Xie
University of Science and Technology of China, China
For selective CO2 photoreduction to multi-carbon products, semiconducting atomic layers featuring abundant Metaln+-Metalδ+ pair sites (0 < δ <n) are designed, aiming to tailor asymmetric charge distribution on theadsorbed carbonaceous intermediates and hence trigger their C–C coupling for selectively yielding multicarbon products.
1882–1891
Hydrogen-assisted scalable preparation of ultrathin Pt shells onto surfactant-free and uniform Pd nanoparticles for highly efficient oxygen reduction reaction in practical fuel cells
Liuxuan Luo1, Cehuang Fu1, Aiming Wu1, Zechao Zhuang2, Fengjuan Zhu1, Fangling Jiang3, Shuiyun Shen1, Xiyang Cai1, Qi Kang1, Zhifeng Zheng1, Chenyi Hu1, Jiewei Yin1, Guofeng Xia1, and Junliang Zhang1,*
1 Shanghai Jiao Tong University, China
2 Tsinghua University, China
3 Shanghai Institute of Ceramics, Chinese Academy of Sciences, China
Uniform, small-sized, and surfactant-free Pd nanoparticles are coated with ultrathin ~ 3-atomic-layer Pt shells via a scalable hydrogen-assisted method as a high-performance electrocatalyst for the oxygen reduction reaction in practical fuel cells.
1892–1900
Insight into sulfur and iron effect of binary nickel-iron sulfide on oxygen evolution reaction
Qikang Wu, Songrui Wang, Jiahui Guo, Xueqing Feng, Han Li, Shanshan Lv, Yan Zhou, and Zheng Chen*
Anhui Normal University, China
We develop a scalable preparation strategy of nickel iron sulfide with superior activity, and systematically investigate the role of various species.
1901–1908
Probing CO on a rutile TiO2(110) surface using atomic force microscopy and Kelvin probe force microscopy
Yuuki Adachi, Yasuhiro Sugawara, Ping Ning1, and Yan Jun Li*
Osaka University, Japan
Herein, we probe the charge state and dipole moment of manipulable CO on a rutile TiO2(110) surface using atomic force microscopy and Kelvin probe force microscopy at atomic resolution.
1909–1915
Nested hollow architectures of nitrogen-doped carbon-decorated Fe, Co, Ni-based phosphides for boosting water and urea electrolysis
Jie Zhang1, Shoushuang Huang1,*, Ping Ning1, Peijun Xin1, Zhiwen Chen1,*, Qing Wang1, Kajsa Uvdal2, and Zhangjun Hu1,2,*
1 Shandong University, China
2 Linköping University, Sweden
Here, nitrogen-doped carbon-decorated tricomponent metal phosphides of FeP4 nanotube@Ni-Co-P nanocage (NC-FNCP) with unique nested hollow architectures are fabricated by a self-sacrifice template strategy. Benefiting from the multi-component synergy, the modification of nitrogen-doped carbon, and the modulation of nested porous hollow morphology, the NC-FNCP exhibits great properties on both the oxygen evolution reaction (OER) and the urea oxidation reaction (UOR).
1916–1925
Large-scale production of holey carbon nanosheets implanted with atomically dispersed Fe sites for boosting oxygen reduction electrocatalysis
Xuanni Lin1, Lei Shi1, Feng Liu1, Changcheng Jiang1, Junjie Mao2,*, Chuangang Hu1,*, and Dong Liu1,*
1 Beijing University of Chemical Technology, China
2 Anhui Normal University, China
A simple and green mechanochemical approach was proposed to synthesize zeolitic imidazolate framework precursors for the production of atomically dispersed Fe-N4 sites in holey carbon nanosheets (SAFe-PCNs) at hectogram level. Benefiting for large specific surface area, abundant lamellar edges, and rich Fe-N4 active sites, the optimized SAFe-PCNs exhibited superior acidic oxygen reduction reaction (ORR) performance.
1926–1933
The electrochemical reforming of glycerol at Pd nanocrystals modified ultrathin NiO nanoplates hybrids: An efficient system for glyceraldehyde and hydrogen coproduction
Ge Ma, Na Yang, Guofu Zhou, and Xin Wang*
South China Normal University, China
As a bifunctional electrocatalyst, Pd-NCs/NiO-uNPs||Pd-NCs/NiO-uNPs glycerol electrolyzer can achieve the co-generation of H2 and value-added glyceraldehyde.
1934–1941
Mn, N co-doped Co nanoparticles/porous carbon as air cathode for highly efficient rechargeable Zn-air batteries
Hanzhen Zheng1, Fei Ma1, Hongcen Yang1, Xiaogang Wu1, Rui Wang1, Dali Jia1, Zhixia Wang1, Niandi Lu1, Fen Ran2, and Shanglong Peng1,*
1 Lanzhou University, China
2 Lanzhou University of Technology, China
We report a Mn-doped CoNx on N-doped porous carbon (Mn-CoNx/NPC) electrocatalyst, which shows a small potential difference (ΔE =0.71 V). Excellent bifunctional catalytic activity is attributed to the influence of Mn and N co-doped on the catalyst.
1942–1948
Supramolecular precursor derived loofah sponge-like Fe2Ox/C for effective synergistic reaction of Fenton and photocatalysis
Chen Zhao1,2, Shien Guo3, Qi Li1, Jianan Liu1, Mang Zheng1, Xudong Xiao1, Baojiang Jiang1,*, and Honggang Fu1,*
1 Heilongjiang University, China
2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
3 Jiangxi Normal University, China
A sponge-like Fe2O3/C nanocomposite with Fenton andphotocatalytic synergistic catalysis was synthesized. Under air mass (AM) 1.5 irradia-tion, only a small amount of H2O2 is added at the beginning to achieve continuous and efficient degradation of nitrobenzene. The degradation rate reaches 100% and the mineralization rate reaches 97% within 90 min.
1949–1958
RuO2 clusters derived from bulk SrRuO3: Robust catalyst for oxygen evolution reaction in acid
Muwei Ji1, Xin Yang2, Shengding Chang2, Wenxing Chen3, Jin Wang1,2,*, Dongsheng He4, Yao Hu2, Qian Deng2, You Sun2, Bo Li2, Jingyu Xi2, Tomoaki Yamada5, Jiatao Zhang3, Hai Xiao2, Caizhen Zhu2, Jia Li2,*, and Yadong Li2,*
1 Shenzhen University, China
2 Tsinghua University, China
3 Beijing Institute of Technology, China
4 Southern University of Science and Technology, China
5 Nagoya University, Japan
The uniform RuO2 clusters with ~ 2 nm in size were synthesized via electrochemical leaching of Sr from SrRuO3 ceramic in acid, and exhibited ultrahigh oxygen evolution reaction (OER) activity with an overpotential of ~ 160 mV at 10 mA·cmgeo-2 in 1.0 M HClO4 solution for 30-h testing.
1959–1965
Atomically dispersed dual Fe centers on nitrogen-doped bamboo-like carbon nanotubes for efficient oxygen reduction
Ligang Ma1, Junlin Li2, Zhiwei Zhang3, Hao Yang1, Xueqin Mu1, Xiangyao Gu1, Huihui Jin3, Ding Chen3, Senlin Yan1,*, Suli Liu1,*, and Shichun Mu3,4,*
1 Nanjing Xiaozhuang University, China
2 Jinling Institute of Technology, China
3 Wuhan University of Technology, China
4 Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, China
Atomically dispersed dual-Fe center incorporated hollow bamboo-like N-doped carbon nanotubes are successfully created with extraordinary performance for oxygen reduction reaction (ORR) and Zn-air batteries, demonstrating that the atomic-scale engineering of dual-metal sites holds promise for efficiently regulating the multiple electrocatalytic reaction process of catalysts.
1966–1972
Reinventing MoS2 Co-catalytic Fenton reaction: Oxygen-incorporation mediating surface superoxide radical generation
Xianjun Tan, Wenhui Ding, Zhenying Jiang, Linxiao Sun, and Yuxiong Huang*
Tsinghua University, China
Efficient activation and oriented-conversion of H2O2 to surface-bounded superoxide radical (·O2− surface) were achieved by oxygen-incorporated MoS2 nanosheets, reinventing the understanding of MoS2 co-catalytic Fenton reaction.
1973–1982
Mesoporous silica stabilized MOF nanoreactor for highly selective semi-hydrogenation of phenylacetylene via synergistic effect of Pd and Ru single site
Zhenxing Li1,*, Mingliang Hu1, Jiahao Liu1, Weiwei Wang1,Yanjie Li1, Wenbin Fan2, Yixuan Gong1, Jiasai Yao1, Ping Wang1, Miao He1, and Yongle Li2,3,*
1 University of Petroleum (Beijing), China
2 Shanghai University, China
3 California Institute of Technology, USA
Mesoporous silica stabilized Pd and Ru single site catalysts catalyze the selective hydrogenation of phenylacetylene, obtaining 98% phenylacetylene conversion and 96% styrene selectivity.
1983–1992
Rationally engineered Co and N co-doped WS2 as bifunctional catalysts for pH-universal hydrogen evolution and oxidative dehydrogenation reactions
Min Ling1, Na Li1, Binbin Jiang3, Renyong Tu4, Tao Wu1, Pingli Guan1, Yin Ye1, Weng-Chon (Max) Cheong4,5,Kaian Sun4, Shoujie Liu6, Konglin Huang4,7,*, and Xianwen Wei1,2,*
1 Anhui Normal University, China
2 Anhui University of Technology, China
3 Anqing Normal University, China
4 Tsinghua University, China
5 University of Macau, Macao, China
6 Chemistry and Chemical Engineering of Guangdong Laboratory, China
7 University of Electronic Science and Technology of China, Chin
Through the combination of rational design and accurate synthesis of density functional theory (DFT) calculation, an evaporation-pyrolysis method was developed to prepare Co and N co-doped WS2 (Co,N-WS2) multifunctional catalyst. And the obtained Co,N-WS2 can not only be used as efficient catalyst for hydrogen evolution over a wide pH range, but also for oxidative dehydrogenation of 1,2,3,4-tetrahydroquinoline and its derivatives.
1993–2002
Developing hierarchical CdS/NiO hollow heterogeneous architectures for boosting photocatalytic hydrogen generation
Chonghai Deng1,*, Fan Ye1, Tao Wang1, Xiaohui Ling1, Lulu Peng1, Hong Yu2, Kangzhe Ding2, Hanmei Hu2, Qiang Dong1,*, Huirong Le3, and Yongsheng Han4,*
1 Hefei University, China
2 Anhui Jianzhu University, China
3 Tsinghua University, China
4 Institute of Process Engineering, Chinese Academy of Sciences, China
A novel hierarchical composite architecture with p–n heterojunction is constructed by in-situ growth of CdS nanoparticles on porous NiO spheres with hollow interior. The architectures exhibit superior performance of boosting hydrogen generation in photocatalytic water splitting.
2003–2012
Photocatalytic hydrogen production from seawater under full solar spectrum without sacrificial reagents using TiO2 nanoparticles
Jining Zhang1,2, Yifan Lei1,2, Shuang Cao1, Wenping Hu2,*, Lingyu Piao1,3,*, and Xiaobo Chen4,*
1 National Center for Nanoscience and Technology, China
2 Tianjin University, China
3 University of Chinese Academy of Sciences, China
4 University of Missouri–Kansas City, USA
TiO2 nanoparticles (NPs) with three different crystal structures are used as photocatalysts to study the photocatalytic overall seawater splitting without sacrificial agents, and the underlying reasons are explored systematically on the difference in their photocatalytic activity on H2 production and on the effect of chloride ions (Cl-).
2013–2022
Energy
Research Articles
Conversion of hydroxide into carbon-coated phosphide using plasma for sodium ion batteries
Jin Liang1, Guoyin Zhu3, Yizhou Zh.ang3,4,*, Hanfeng Liang2,*, and Wei Huang1,4,*
1 Nanjing Tech University, China
2 Xiamen University, China
3 Nanjing University of Information Science and Technology, China
4 Nanjing University of Posts and Telecommunications, China
A general plasma treatment approach was developed to significantly improve the performance of metal phosphides as sodium ion battery anode materials.
2023–2029
Mechanoadaptive morphing gel electrolyte enables flexible and fast-charging Zn-ion batteries with outstanding dendrite suppression performance
Faqing Cao1, Baohu Wu2, Tianyu Li3, Shengtong Sun1,*, Yucong Jiao1,*, and Peiyi Wu1,*
1 Donghua University, China
2 Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich, Germany
3 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
The mechanoadaptive morphing gel electrolyte (MorphGE) optimizes the interfacial contact with electrodes to realize the great suppression of dendrite formation, and the anchoring of Zn2+ on MorphGE chains significantly reduces side reactions.
2030–2039
N/S co-doped carbon nanosheet bundles as highcapacity anode for potassium-ion battery
Jinhui Cao1, Jiang Zhong1, Hanjiao Xu1, Shengyang Li1, Hongli Deng1, Tao Wang1, Ling Fan1, Xinghui Wang2, Lei Wang1,*, Jian Zhu1,*, Bingan Lu1, and Xidong Duan1,*
1 Hunan University, China
2 Fuzhou University, China
Three-dimensional (3D) interconnected nitrogen/sulfur co-doped carbon nanosheet bundles were proposed as anode for high-performance K+ ions storage, owing to its short K+diffusion pathway and fast e–transport kinetic.
2040–2046
Alloxazine as anode material for high-performance aqueous ammonium-ion battery
Yuan Ma1, Tianjiang Sun1, Qingshun Nian2, Shibing Zheng1, Tao Ma1, Qiaoran Wang1, Haihui Du1, and Zhanliang Tao1,*
1 Nankai University, China
2 University of Science and Technology of China, China
An aqueous ammonium-ion battery with alloxazine as anode is constructed. It possesses excellent rate performance and cycling stability, and delivers high energy density and power density.
2047–2051
Low-temperature strategy to synthesize single-crystal LiNi0.8Co0.1Mn0.1O2 with enhanced cycling performances as cathode material for lithium-ion batteries
Fangya Guo, Yongfan Xie, and Youxiang Zhang*
Wuhan University, China
Single-crystal LiNi0.8Co0.1Mn0.1O2 is synthesized by calcination at low temperature after mixing oxalate precursor with Mn source and excessive lithium source. Compared with common Ni-rich LiNixCoy-Mn1–x–yO2(NCM), this material shows higher initial Coulombic efficiency and much enhanced cycling stability as the cathode for lithium-ion batteries.
2052–2059
Transparent, stretchable, temperature-stable and self-healing ionogel-based triboelectric nanogenerator for biomechanical energy collection
Weiqiang Liao1, Xiukun Liu1, Yuqi Li1,*, Xu Xu1, Jinxing Jiang2, Shaorong Lu1, Dequan Bao2, Zhen Wen2,*, and Xuhui Sun2,*
1 Guilin University of Technology, China
2 Soochow University, China
A temperature-stable and low-temperature self-healable ionogel-based stretchable triboelectric nanogenerator has been synthesized as a wearable power source for collecting biomechanical energy .
2060–2068
Hybridized triboelectric-electromagnetic nano-generators and solar cell for energy harvesting and wireless power transmission
Yandong Chen1,2, Yang Jie1,2, Jiaqing Zhu1,3, Qixin Lu1,2,4, Yu Cheng1,2, Xia Cao1,2,3,4,*, and Zhong Lin Wang1,2,5,*
1 Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China
2 University of Chinese Academy of Sciences, China
3 University of Science and Technology Beijing, China
4 School of Physical Science and Technology Guangxi University, China
5 Georgia Institute of Technology, USA
A hybridized energy harvester was designed to achieve the goal of complementing each other’s strengths for simultaneously scavenging environmental energy and wireless power transmission.
2069–2076
Triboelectric nanogenerator with mechanical switch and clamp circuit for low ripple output
Xin Yu1,2, Zhenjie Wang1,2, Da Zhao2, Jianwei Ge1,2, Tinghai Cheng2,3,*, and Zhong Lin Wang2,3,4,*
1 Changchun University of Technology, China
2 Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China
3 CUSTech Institute of Technology, China
4 Georgia Institute of Technology, USA
The triboelectric nanogenerator with mechanical switch and clamping circuit can transform alternating current into stable direct current through rectification and voltage regulation.
2077–2082
Constructing ultrastable electrode/electrolyte interface for rapid potassium ion storage capability via salt chemistry and interfacial engineering
Sheng Wen1, Xin Gu1,*, Xiangwei Ding1, Li Zhang1, Pengcheng Dai1, Liangjun Li1, Dandan Liu1, Wenchao Zhang2,3,*, Xuebo Zhao1,*, and Zaiping Guo3,4
1 China University of Petroleum (East China), China
2 Central South University, China
3 University of Wollongong, Australia
4 The University of Adelaide, Australia
Synergistic interface engineering based on using potassium bis (fluorosulfonyl)imide (KFSL) electrolyte and an ultrathin TiO2 coating is proposed to boost the electrochemical performance of SnS/rGO anode.
2083–2091
A channel-confined strategy for synthesizing CoN-CoOx/C as efficient oxygen reduction electrocatalyst for advanced zinc-air batteries
Xingmei Guo1, Wei Zhang1, Jing Shi1, Mengting Duan1,Shanjing Liu1, Junhao Zhang1,*, Yuanjun Liu1, Shenglin Xiong2,*, and Qinghong Kong3
1 Jiangsu University of Science and Technology, China
2 Shandong University, China
3 Jiangsu University, China
A novel channel-confined complexation followed by calcination strategy is proposed to synthesize CoN-CoOx hybrid nanoparticles uniformly dispersed in carbon matrix. The favorable oxygen reduction reaction (ORR) intermediate adsorbability and metallic characteristics of CoN with oxide hybrization to optimize the electronic structure make it excellent cathodic catalyst for zinc-air batteries.
2092–2103
Structure-design and theoretical-calculation for ultrasmall Co3O4 anchored into ionic liquid modified graphene as anode of flexible lithium-ion batteries
Longda Cong1, Shichao Zhang1,*, Hengyao Zhu1, Weixin Chen2, Xueyan Huang2, Yalan Xing1, Jun Xia1,*, Puheng Yang1,*, and Xia Lu2
1 Beihang University, China
2 Sun Yat-sen University, China
We design and fabricate a three-dimensional hierarchical porous structure ultrasmall Co3O4 anchored into ionic liquid (IL) [BMIm][N(CN)2] modified graphere oxide (GO) composite. We envision that the concept has significant repercussions on the design and development of high energy density and flexible electrochemical energy-storage devices for future widespread applications.
2104–2111
Efficient passivation of DY center in CH3NH3PbBr3 by chlorine: Quantum molecular dynamics
Ran Shi1, Wei-Hai Fang1, Andrey S. Vasenko2,3, Run Long1,*, and Oleg V. Prezhdo4
1 Beijing Normal University, China
2 National Research University Higher School of Economics (HSE) University, Russia
3 Donostia International Physics Center (DIPC), Spain
4 University of Southern California, USA
Doping CH3NH3PbBr3 with Bi increases charge carrier density and conductivity, improves photostability, and reduces toxicity; however, it creates deep and localized hole traps, called DY− centers, significantly shortening carrier lifetimes. Passivating DY− centers with chlorines heals the trap and makes the lifetimes longer than even in pristine CH3NH3PbBr3.
2112–2122
Alleviating mechanical degradation of hexacyanoferrate via strain locking during Na+ insertion/extraction for full sodium ion battery
Jianguo Sun1, Hualin Ye1, Jin An Sam Oh1,3, Yao Sun4, Anna Plewa5, Yumei Wang1,2, Tian Wu6, Kaiyang Zeng1, and Li Lu1,2,*
1 National University of Singapore, Singapore
2 National University of Singapore Chongqing Research Institute, China
3 Singapore Institute of Manufacturing Technology, A*STAR, Singapore
4 Harbin Institute of Technology, China
5 AGH University of Science and Technology, Poland
6 Hubei University of Education, China
Excellent full sodium-ion batteries (SIBs) performance is achieved due to the stress locking effect and good Na+ diffusion kinetics through a built-in electric field.
2123–2129
Air-stable magnesium nickel hydride with autocatalytic and self-protective effect for reversible hydrogen storage
Zhongliang Ma1, Yingyan Zhao1, Zhaohui Wu2, Qinke Tang1, Jinlian Ni1, Yunfeng Zhu1,*, Jiguang Zhang1, Yana Liu1, Yao Zhang3, Hai-Wen Li4,5, Xiaohui Hu1, Xinjian Zhu2, and Liquan Li1,*
1 Nanjing Tech University, China
2 Jiangsu Qianjing New Energy Industrial Technology Research Institute Co., Ltd, China
3 Southeast University, China
4 Hefei General Machinery Research Institute, China
5 Kyushu University, Japan
Such unexpected and interesting hydrogen desorption kinetics and hydrogen storage capacity retention should be attributed to the unique autocatalytic and self-protective effect via the in-situ formed ultrafine Ni and surface passivation layer .
2130–2137
Interface engineering of plasmonic induced Fe/N/C-F catalyst with enhanced oxygen catalysis performance for fuel cells application
Xue Yin1, Ligang Feng2,*, Wen Yang1,*, Yuanxi Zhang3, Haiyan Wu3, Le Yang1, Lei Zhou1, Lin Gan3,*, and Shaorui Sun4,*
1 Beijing Institute of Technology, China
2 Yangzhou University, China
3 Tsinghua University, China
4 Beijing University of Technology, China
The interface engineering of plasmonic induced Fe/N/C-F catalyst can optimize the three-phase microenvironment efficiently in the catalytic electrode, thereby enhancing oxygen catalytic performance for fuel cell application.
2138–2146
Fluorine-induced dual defects in NiP2 anode with robust sodium storage performance
Liang Wu1, Lifeng Wang2, Xiaolong Cheng2, Mingze Ma2, Ying Wu2, Xiaojun Wu2, Hengpan Yang1, Yan Yu2,*, and Chuanxin He1,*
1 Shenzhen University, China
2 University of Science and Technology of China, China
The three-dimensional bicontinuous carbon matrix confined with the F-doped NiP2 nanoparticles (F-NiP2@carbon nanosheets) has been successfully designed and fabricated via the hydrothermal and phosphorization methods as anode material for sodium-ion batteries. Assisted by the rational structural design and electronic structure modulation of NiP2 via F doping induced dual defects, an impressive reversible capacity (585 mAh·g–1 at 0.1 A·g–1) and superior cycling stability (244 mAh·g–1 at 2 A·g–1 over 1,000 cycles) could be obtained.
2147–2156
Nanobiology
Review Articles
Smart nanocarriers as therapeutic platforms for bladder cancer
Tongyu Tong1, Yupeng Guan1, Yuanji Gao2, Chengyuan Xing1, Shiqiang Zhang1, Donggen Jiang1, Xiangwei Yang1, Yang Kang1,*, and Jun Pang1,*
1 Sun Yat-sen University, China
2 Sichuan Normal University, China
The different features and design of nanocarriers as therapeutic platforms for bladder cancer are reviewed.
2157–2176
Nanoparticles targeting tumor-associated macro-phages: A novel anti-tumor therapy
Siyuan Chen, Furong Qin, Manni Wang, Yuquan Wei, Zhiyong Qian, and Xiawei Wei*
Sichuan University, China
Immunotherapy targeting tumour-associated macrophages based on nanoparticles is a promising therapeutic strategy.
2177–2195
Review: Development of SARS-CoV-2 immuno-enhanced COVID-19 vaccines with nano-platform
Nawamin Sa-nguanmoo1,2, Katawut Namdee3, Mattaka Khongkow3, Uracha Ruktanonchai3, YongXiang Zhao4, and Xing-Jie Liang1,2,*
1 National Center for Nanoscience and Technology of China, China
2 University of Chinese Academy of Sciences, China
3 National Science and Technology Development Agency, Thailand
4 Guangxi Medical University, China
The advantages of nano-based vaccines include their ability to target and form images and their stability in a wide range of pH and ambient temperatures, which could enhance the humoral and cellular immune responses.
2196–2225
Research Articles
Hydrogen-bonding regulated supramolecular chirality with controllable biostability
Jinying Liu1,2, Yu Zhao3, Changli Zhao1, Xiaoqiu Dou1, Xiaoyu Ma1, Shaokang Guan3, Yu Jia2,3,*, and Chuanliang Feng1,*
1 Shanghai Jiao Tong University, China
2 Henan University, China
3 Zhengzhou University, China
The chirality of helical nanofibers and their biostability is triggered by the transition of ester and amide groups, attributed to the formation of different hydrogen bonding patterns.
2226–2234
BSA stabilized photothermal-fenton reactor with cisplatin for chemo/chemodynamic cascade oncotherapy
Nan Yang1, Tian Zhang1, Changyu Cao1, Genxiang Mao3, Jinjun Shao1, Xuejiao Song1,*, Wenjun Wang2, Xiaozhou Mou3,4,*, and Xiaochen Dong1,*
1 Nanjing Tech University, China
2 Liaocheng University, China
3 Zhejiang Hospital, China
4 Hangzhou Medical College, China
The work highlights a new type of therapeutic agent based on cisplatin (CDDP) with the ability of H2O2 self-generation, thermal respon-siveness, and enhanced chemodynamic therapy (CDT) effects for applications in cancer therapy.
2235–2243
Necroptosis-elicited host immunity: GOx-loaded MoS2 nanocatalysts for self-amplified chemodynamic immunotherapy
Wensheng Xie1,†, Jingsong Lu1,2, Zhenhu Guo1,3, Xiaoxiao Guo1, Yongjiu Chi1, Jieling Ye1, Junxin Zhang1, Wanling Xu1, Lingyun Zhao1,*, and Yen Wei1,*
1 Tsinghua University, China
2 Zhejiang University of Technology, China
3 Central South University, China
† Present address: Tsinghua University, China
A GOx-loaded MoS2 nanocatalyst is fabricated to examine the necroptosis-elicited host immunity. Necroptosis of tumor cells is indu-ced by photothermal therapy enhanced self-amplified chemodynamic therapy, and then the induced necroptosis via photothermal therapy enhanced self-amplified chemodynamic immunotherapy (PTT-co-CDT) could directly trigger host immunity by activating the antigen-specific T-cells (CD4+ and CD8+) for primary and remote tumor eliminatio.
2244–2253
Rapid detection of influenza A (H1N1) virus by conductive polymer-based nanoparticle via optical response to virus-specific binding
Geunseon Park1, Hyun-Ouk Kim2, Jong-Woo Lim1, Chaewon Park1, Minjoo Yeom3, Daesub Song3,*, and Seungjoo Haam1,*
1 Yonsei University, Republic of Korea
2 Kangwon National University, Republic of Korea
3 Korea University, Republic of Korea
Rapid diagnostic platform was fabricated with polymeric vesicles encapsulating conductive polymer (poly(aniline-co-pyrrole)), eliciting optical response against influenza A virus (H1N1) in 15 min. The detection system achieved a limit of detection of 103.37 TCID50/mL and demonstrated its specificity against H1N1 by conducting cross-reactivity test in various types of viruses.
2254–2262
Thickness-dependent monochalcogenide GeSe-based CBRAM for memory and artificial electronic synapses
Asif Ali1, Haider Abbas2, Muhammad Hussain1, Syed Hassan Abbas Jaffery1, Sajjad Hussain1, Changhwan Choi2,*, and Jongwan Jung1,*
1 Sejong University, Republic of Korea
2 Hanyang University, Republic of Korea
Resistive memory characteristics were investigated for different thicknesses of GeSe-based conductive bridge random access memory (CBRAM) devices with a stacking sequence of Ag/GeSe/Pt/Ti/SiO2. The controllable multilevel resistive switching in direct current (DC) and appropriate pulse measurements were carried out to emulate vital biological synaptic functions for neuromorphic computing.
2263–2277
R11 peptides can promote the molecular imaging of spherical nucleic acids for bladder cancer margin identification
Minghai Ma1, Pu Zhang1,2, Xiao Liang1,3, Daxiang Cui4, Qiuya Shao1, Haibao Zhang1,Mengzhao Zhang1,Tao Yang1, Lu Wang1, Nan Zhang1, Minxuan Jing1, Lu Zhang1, Weichao Dan1, Rundong Song1, Xi Liu3, Jiatao Hao1, Yuhang Chen1, Lijiang Gu1, Lei Wang3,*, and Jinhai Fan1,*
1 Xi’an Jiaotong University, China
2 People’s Hospital of Hangzhou Medical College, China
3 Air Force Medical University, China
4 Shanghai Jiao Tong University, China
R11 peptide-linked spherical nucleic acids exhibited active targeting of nanoprobes, promoted lysosome escape, and contributed to responsive margin imaging of badder cancer, which might eventually lead to complete tumor resection and improved patient outcomes.
2278–2287
Multifunctional Gd-CuS loaded UCST polymeric micelles for MR/PA imaging-guided chemo-photothermal tumor treatment
Yan Du1, Di Liu1, Mingchen Sun1, Gaofeng Shu2, Jing Qi1, Yuchan You1, Yiting Xu1, Kai Fan2, Xiaoling Xu1,Feiyang Jin1, Jun Wang1, Qiying Shen1, Luwen Zhu1,Xiaoying Ying1, Jiansong Ji2, Liming Wu2,*, Daren Liu2,*, and Yongzhong Du1,*
1 Zhejiang University, China
2 Zhejiang University School of Medicine, China
Hepatocellular carcinoma (HCC) is a serious disease with high morbid-ity and mortality. An effective theranostic means is urgently needed for HCC clinical application. This study was aimed to develop Gd-CuS nanoparticles-based upper critical solution temperature micelles as a new nanoplatform for magnetic resonance/photoacoustic dual-mode imaging-guided chemo-photothermal therapy of HCC.
2288–2299
CD137 agonist potentiates the abscopal efficacy of nanoparticle-based photothermal therapy for melanoma
Preethi Bala Balakrishnan1, Debbie K. Ledezma1, Juliana Cano-Mejia1, Jaclyn Andricovich1, Erica Palmer1, Vishal
A. Patel1, Patricia S. Latham1, Eric S. Yvon1, Alejandro Villagra1, Rohan Fernandes1,2,*, and Elizabeth E. Sweeney1,2,*
1 George Washington University, USA
2 ImmunoBlue, USA
A novel nanoimmunotherapy combines locally administered Prussian blue nanoparticle-based photothermal therapy (PBNP-PTT) at an optimal thermal dose with systemically administered agonistic anti-CD137 monoclonal antibody therapy to eradicate melanoma.
2300–2314
Boosting image-guiding radiation therapy through W18O49 nanospheres and the second near-infrared light irradiation
Nannan Zheng1, Shouhao Zhang1, Lu Wang2, Zhilin Qi1, Qiang Peng2, Lingrui Jian2, Yang Bai2, Yue Feng3, Jiachen Shen2, Ranxu Wang2, Jia Jiao1, Wanhai Xu2,*, and Shaoqin Liu1,*
1 Harbin Institute of Technology, China
2 Harbin Medical University, China
3 Harbin Medical University Cancer Hospital, China
We have reported the development of an efficacious radiation therapy (RT) treatment of relatively radio-resistant breast cancer using W18O49 nanospheres and the second near-infrared light irradiation, which were capable of dramatically boosting RT efficiency and overcoming tumor recurrence and metastatic cancers.
2315–2323
A pH-responsive polymersome depleting regulatory T cells and blocking A2A receptor for cancer immunotherapy
Binfen Shao, Xuehui Huang, Funeng Xu, Jingmei Pan, Yi Wang*, and Shaobing Zhou*
Southwest Jiaotong University, China
A pH-responsive polymersome is developed to co-deliver cyclophos-phamide (CY) and ZM241385 (ZM) drugs, which possesses a capability of simultaneously depleting regulatory T cells, inducing immunogenic cell death, and blocking the A2A receptor (A2AR) pathway for remodeling immunosuppressive tumor microenvironment and enhancing the antitumor immune response.
2324–2334
Self-assembly nanomicelle-microneedle patches with enhanced tumor penetration for superior chemo-photothermal therapy
Ying Sun1, Minglong Chen1,3, Dan Yang2, Wanbing Qin1, Guilan Quan2,*, Chuanbin Wu2, and Xin Pan1,*
1 Sun Yat-sen University, China
2 Jinan University, China
3 University of Science and Technology of China, China
In situ self-assembly nanomicelle dissolving microneedle patches loaded with paclitaxel (PTX) and IR780 (PTX/IR780-NMs@DMNs) were fabricated to achieve enhanced tumor accumulation and deep penetration for synergistic antitumor therapy.
2335–2346
Self-assembled manganese phthalocyanine nanoparticles with enhanced peroxidase-like activity for anti-tumor therapy
Jinghan Wang1,2, Shanqing Gao1, Xiao Wang2, Haozhen Zhang1, Xitong Ren1, Juewen Liu2,*, and Feng Bai1,*
1 Henan University, China
2 Waterloo Institute for Nanotechnology, Canada
The functional manganese phthalocyanine nanocrystals have different structures through noncovalent self-assembly confined within micro-emulsion droplets, using manganese phthalocyanine (MnPc) possessing a metal-N-C active center as building block. These nano-assemblies exhibit shape dependent peroxidase (POD)-like catalytic activities, because the emulsifier and MnPc co-mixed assembly reduced the close packing between MnPc molecules and exposed more active sites. The assemblies show higher catalytic activity only emerged under the acidic tumor-like microenvironment, which causes less damage to normal tissues in biomedical applications.
2347–2354
Nano detection
Research Articles
Infrared nanoimaging of nanoscale sliding dislocation of collagen fibrils
Zhi Qiao1,2, Mengfei Xue3,4, Yongqian Zhao3,4, Yindong Huang2, Ming Zhang5, Chao Chang1,2,*, and Jianing Chen3,4,6,*
1 Xi’an Jiaotong University, China
2 National Innovation Institute of Defense Technology, China
3 University of Chinese Academy of Sciences, China
4 Institute of Physics, Chinese Academy of Sciences, China
5 Fourth Military Medical University, China
6 Songshan Lake Materials Laboratory, China
Two types of collagen fibrils’ arrangement with different periodic characteristics were observed. A crystal sliding model was employed to explain this observation qualitatively.
2355–2361
Volume and surface effects on two-photonic and three-photonic processes in dry co-doped upconversion nanocrystals
Bettina Grauel1, Christian Würth1, Christian Homann2, Lisa Krukewitt1,†, Elina Andresen1, Janina Roik2, Sebastian Recknagel2, Markus Haase2,*, and Ute Resch-Genger1,*
1 Federal Institute for Materials Research and Testing (BAM), Germany
2 University Osnabrueck, Germany
† Present address: University Medical Center Rostock, Germany
Steady state and time-resolved luminescence studies of differently sized core and core/shell NaYF4 nanocrystals doped with either 20% Yb3+ or 2% Er3+ or co-doped with Yb3+ and Er3+ and the corresponding bulk materials provide evidence for a different influence of volume and surface effects on two-photonic and three-photonic processes involved in the generation of upconversion luminescence (UCL) .
2362–2373
Flexible atomic buckling and homogeneous edge states in few-layer Bi(110) films
Yanfeng Lyu1,*, Samira Daneshmandi1, Shuyuan Huyan1, and Chingwu Chu1,2,*
1 University of Houston, USA
2 Lawrence Berkeley National Laboratory, USA
The schematic illustrates the lattice displacement and inversion in few-layer Bi(110) films, the topography-dependent edge states at the reconstructed (R) edge, and the homogeneous edge states at the zigzag-shaped (Z) edge in 4-monolayer Bi(110) .
2374–2381
Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin films
Heng Zhang*, Jamo Momand, Joshua Levinsky, Qikai Guo, Xiaotian Zhu, Gert H ten Brink, Graeme R. Blake, George Palasantzas, and Bart J. Kooi*
University of Groningen, The Netherlands
Highly-textured and single-crystal-like Bi2Te3 films have been grown using pulsed laser deposition on Si wafer covered with thermal SiOx and mica substrates. The power factor (PF) value of 12.8 μW·cm−1·K−2 at room temperature was obtained in single-crystal-like Bi2Te3 film, whereas a high PF value of 56.8 μW·cm−1·K−2 was achieved in highly-textured Bi2Te3 film, which is close to the best one of bulk single crystal Bi2Te3 (58 μW·cm−1·K−2).
2382–2390
Inversion symmetry broken 2D SnP2S6 with strong nonlinear optical response
Yue Zhang1, Fakun Wang1, Xin Feng1, Zongdong Sun1, Jianwei Su1, Mei Zhao1, Shuzhe Wang1, Xiaozong Hu2,*, and Tianyou Zhai1,*
1 Huazhong University of Science and Technology, China
2 Zhengzhou University, China
Inversion symmetry broken two-dimensional (2D) SnP2S6 with strong nonlinear optical response is introduced for the first time. The SnP2S6 flakes simultaneously exhibit second-order and third-order nonlinear optical response, and second-order susceptibility (χ(2)) is up to 4.06 × 10−9 m·V−1 under 810 nm excitation wavelength. Moreover, the nonlinear optical response of 2D SnP2S6 is highly sensitive to layer number, wavelength, polarization angle, and temperature.
2391–2398
X-ray imager of 26-μm resolution achieved by perovskite assembly
Zhaofen Wang1, Ruijia Sun2, Nianqiao Liu2, Huailin Fan2, Xun Hu2, Depeng Shen2,*, Yuhai Zhang2,*, and Hong Liu1,2,*
1 Shandong University, China
2 University of Jinan, China
A crack-free thin film consisting of self-assembled CsPbBr3 nanosheets was readily prepared by drop-casting technique at ambient condition. The thin film not only exhibited a high photoluminescence quantum yield (PL QY) but also showcased a high sensitivity to X-ray irradiation. A 15-μm-thickness scintillation screen demonstrated in perovskite community an unprecedented resolution down 26 μm.
2399–2404
Coherent-interface-induced strain in large lattice-mismatched materials: A new approach for modeling Raman shift
Andrian V. Kuchuk1,*, Fernando M. de Oliveira1,2, Pijush K. Ghosh1, Yuriy I. Mazur1, Hryhorii V. Stanchu1, Marcio D. Teodoro2, Morgan E. Ware1, and Gregory J. Salamo1
1 University of Arkansas, USA
2 Universidade Federal de São Carlos, Brazil
A self-checking approach to correlate the Raman frequency shift and strain, which is based on the lattice coherency at the interfaces of the SL’s epitaxial layers and should be valid for a wide range of materials was developed.
2405–2412
Nanodevice
Review Articles
Recent progress of flexible electronics by 2D transition metal dichalcogenides
Lu Zheng1, Xuewen Wang1,*, Hanjun Jiang1, Manzhang Xu1, Wei Huang1,*, and Zheng Liu2,*
1 Northwestern Polytechnical University, China
2 Nanyang Technological University, Singapore
The recent progress on two-dimensional (2D) transition metal dichalcogenides (TMDs)-based flexible devices is summarized, including the electrical and mechanical properties of 2D TMDs and the performances of 2D TMD based-flexible devices, such as transistors, gas sensors, photodetectors. The key challenges and future perspectives of 2D TMDs-based flexible devices are briefly discussed.
2413–2432
Flexible organic electrochemical transistors for chemical and biological sensing
Li Wang1, Xiaoping Yue1, Qizeng Sun1, Linrong Zhang1, Guozhang Ren1, Gang Lu1,*, Hai-Dong Yu1,2,*, and Wei Huang1,2,*
1 Nanjing Tech University, China
2 Northwestern Polytechnical University, China
This review has discussed the materials, device configurations, fabrications, and applications of flexible organic electrochemical transistors (OECTs). Thanks to the advantages of high sensitivity, simple device architecture, low working voltage, and high stability in liquids, flexible OECTs have been developed intensively for the real-time detection of many analytes, including ions, lactate, glucose, dopamine, DNA, bacteria, and cells.
2433–2464
Research Articles
Performance-enhanced and cost-effective triboelectric nanogenerator based on stretchable electrode for wearable SpO2 monitoring
Huamin Chen1,2, Wei Yang1, Cheng Zhang1, Mingqiang Wu1, Wenjie Li1, Yuxiao Zou3, Longfeng Lv3, Hualiang Yu1, Huizhen Ke1, Ruping Liu5, Yun Xu3,4, Jun Wang1,*, and Zhou Li2,6,*
1 Minjiang University, China
2 Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China
3 Institute of Semiconductors, Chinese Academy of Sciences, China
4 Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, China
5 Beijing Institute of Graphic Communication, China
6 University of Chinese Academy of Sciences, China
A stretchable triboelectric nanogenerator (TENG) based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)@porous carbon exhibited enhanced performance under 100% strain,which demonstrated a self-powered flexible blood oxygen monitoring.
2465–2471
A high-speed 2D optoelectronic in-memory computing device with 6-bit storage and pattern recognition capabilities
Jialin Meng1, Tianyu Wang1, Zhenyu He1, Qingxuan Li1, Hao Zhu1,2, Li Ji1,2, Lin Chen1,2,*, Qingqing Sun1,2,*, and David Wei Zhang1,2
1 Fudan University, China
2 National Integrated Circuit Innovation Center, China
A high-speed two-dimensional (2D) optoelectronic in-memory computing device with 50 ns response time and 6-bit storage was constructed for pattern recognition applications.
2472–2478
Synthesis of haptens and gold-based immunochromatographic paper sensor for vitamin B6 in energy drinks and dietary supplements
Lu Zeng1, Xinxin Xu1, Shanshan Song1, Liguang Xu1, Liqiang Liu1, Jing Xiao2,*, Chuanlai Xu1, and Hua Kuang1,*
1 Jiangnan University, China
2 China National Center for Food Safety Risk Assessment, China
Anti-vitamin B6(VB6) monoclonal aintibodies (mAb) was produced by adopting a novel hapten and based on this, an gold nanoparticles (AuNPs)-based immunochromatographic strip was developed for the detection of VB6 in energy drinks and B-vitamin complex tablets.
2479–2488
PdSe2/MoSe2 vertical heterojunction for self-powered photodetector with high performance
Jiahong Zhong1, Biao Wu1, Yassine MADOUNE1, Yunpeng Wang1, Zongwen Liu2, and Yanping Liu1,3,*
1 Central South University, China
2 The University of Sydney, Australia
3 Shenzhen Research Institute of Central South University, China
We demonstrated a self-powered photodetector with high performance based on vertically stacked PdSe2/MoSe2 heterojunctions and confirmed its application potential of imaging.
2489–2496
High-efficiency CNT-Si solar cells based on a collaborative system enabled by oxide penetration
Xuewei Zhao1, Wenjing Xu1, Yizeng Wu1, Huaisheng Wu1, Zhiyuan Xia1, Huiyi Xu1, Yuanyuan Shang2, Jinquan Wei3, and Anyuan Cao1,*
1 Peking University, China
2 Zhengzhou University, China
3 Tsinghua University, China
By depositing conventional oxides onto a porous carbon nanotube (CNT) network, a collaborative system with optimized optical absorption, charge separation and collection was established, leading to high-efficiency carbon nanotube-silicon (CNT-Si) solar cells as competitive emerging photovoltaics.
2497–2504
Natural polymers based triboelectric nanogenerator for harvesting biomechanical energy and monitoring human motion
Hong Chen1,2, Qixin Lu1,2, Xia Cao2,3,*, Ning Wang3,*, and Zhong Lin Wang2,4,*
1 Guangxi University, China
2 Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China
3 University of Science and Technology Beijing, China
4 Georgia Institute of Technology, USA
The natural polymers-based composite film based-triboelectric nanogenerator (CSA-D-TENG) can be assembled on trampoline to harvest mechanical energies generated by human bodies. It can generate an output voltage of 96 V when people jumping on the trampoli.
2505–2511
Selective and self-validating breath-level detection of hydrogen sulfide in humid air by gold nanoparticle-functionalized nanotube arrays
Luis Antonio Panes-Ruiz1, Leif Riemenschneider1, Mohamad Moner Al Chawa1, Markus Löffler1, Bernd Rellinghaus1, Ronald Tetzlaff1, Viktor Bezugly1,2,*, Bergoi Ibarlucea1,*, and Gianaurelio Cuniberti1,*
1 Technische Universität Dresden, Germany
2 Life Science Incubator Sachsen GmbH & Co. KG, Germany
A reproducible fabrication of a multichannel sensing platform based on arrays of semiconducting single-walled carbon nanotubes functiona-lized with gold nanoparticles is presented. Selective detection of low part per billion (ppb) concentrations of H2S gas in humid air at room temperature is achieved.
2512–2521
Device performance limit of monolayer SnSe2 MOSFET
Hong Li1,*, Jiakun Liang1, Qida Wang1, Fengbin Liu1, Gang Zhou2, Tao Qing2, Shaohua Zhang2, and Jing Lu3,4,5,*
1 North China University of Technology, China
2 Beijing Institute of Control Engineering, China
3 Peking University, China
4 Collaborative Innovation Center of Quantum Matter, China
5 Peking University Yangtze Delta Institute of Optoelectronics, China
We study the device performance limit of monolayer (ML) SnSe2 metal-oxide-semiconductor field-effect transistors (MOSFETs) at ultrashort scale using the ab initio quantum transport method. The optimal n-type ML SnSe2 MOSFETs outperform most of the reported two-dimensional (2D) MOSFETs and surpass the requirements of the International Roadmap for Device and Systems (IRDS) for high-performance (HP) and low-power (LP) applications until the gate length scales down to 2 and 3 nm, respectively.
2522–2530
Planar-symmetry-breaking induced antisymmetric magnetoresistance in van der Waals ferromagnet Fe3GeTe2
Ping Liu1,2, Caixing Liu3, Zhi Wang1, Meng Huang1, Guojing Hu1, Junxiang Xiang1, Chao Feng1, Chen Chen1, Zongwei Ma3, Xudong Cui4, Hualing Zeng1, Zhigao Sheng3,*, Yalin Lu1,*, Gen Yin5, Gong Chen5,*, Kai Liu5, and Bin Xiang1,*
1 University of Science and Technology of China, China
2 Nanjing University of Posts and Telecommunications, China
3 High Magnetic Field Laboratory, Chinese Academy of Sciences, China
4 Institute of Chemical Materials, China Academy of Engineering Physics, China
5 Georgetown University, USA
We demonstrate an antisymmetric magnetoresistance (MR) effect in an Fe3GeTe2 flake with a step terrace, which originates from the in-plane symmetry breaking where a circulating current in the resistivity tensor has to occur near the boundary of magnetic domains at the step edge.
2531–2536
Borophene gas sensor
Chuang Hou, Guoan Tai*, Yi Liu, and Xiang Liu
Nanjing University of Aeronautics and Astronautics, China
A novel flexible borophene-based NO2 sensor has been fabricated experimentally, which shows high sensitivity, good selectivity, fast response and long-time stability. The sensing mechanism is owing to the strong charge transfer caused by adsorption of NO2 molecule on the surface of borophene, which is well revealed by first-principles calculations. The study not only provides a new sensing material system and but also confirms the feasibility of borophene towards future highperformance detection of chemical and biochemical molecules.
2537–2544
Nano unit
Research Articles
Pressure-induced photoluminescence enhancement and ambient retention in confined carbon dots
Qing Lou, Xigui Yang*, Kaikai Liu, Zhongzheng Ding, Jinxu Qin, Yizhe Li, Chaofan Lv, Yuan Shang*, Yuewen Zhang, Zhuangfei Zhang, Jinhao Zang, Lin Dong, and Chong-Xin Shan*
Zhengzhou University, China
The pressure-induced emission behavior of carbon dots (CDs) confined within sodium hydroxide was studied, unlike unconfined CDs, which exhibits a 1.6-fold fluorescence enhancement at a mild pressure of 1.4 GPa. More importantly, the enhanced emission can be successfully retained after releasing pressure to ambient conditions.
2545–2551
Sealing functional ionic liquids in conjugated microporous polymer membrane by solvent-assisted micropore tightening
Mengxi Zhang, Anke Yu, Xiangyu Wu, Pengpeng Shao, Xin Huang, Dou Ma, Xianghao Han, Jing Xie, Xiao Feng*, and Bo Wang*
Beijing Institute of Technology, China
Ship in a bottle: A 6-min electropolymerization is applied to confine computationally selected ionic liquids in conjugated microporous polymer membrane for CO2/CH4 and O2/N2 separation. The experimental results clarify that high surface tension solvent post-treatment allows tightly sealing the aperture of the micropores, which ensures long-term separation stability. This strategy may provide a way to trap functional guest molecules in nanopores.
2552–2557
Versatile Ti3C2Tx MXene for free-radical scavenging
Jiang Liu1, Wei Lu1, Xifeng Lu2, Lu Zhang1, Haifeng Dong2,*, and Yingchun Li1,*
1 Harbin Institute of Technology (Shenzhen), China
2 Shenzhen University, China
Four applications of Ti3C2Tx are established in analytical chemistry and biological medicine fields based on the reaction between Ti3C2Tx and the oxidant: (1) Ti3C2Tx is applied for H2O2 colorimetric platform; (2) a Ti3C2Tx-enabled test strip is developed for H2O2 semi-quantitative detection; (3) Ti3C2Tx serves as free radical scavenging; (4) Ti3C2Tx serves as an antioxidative reagent to improve cell viability under oxidative stress.
2558–2566
Surface-state triggered solvatochromism of carbonized polymer dot and its two-photon luminescence
Zepeng Huo, Weiqing Xu, Gang Chen, Zizhun Wang, and Shuping Xu*
Jilin University, China
A novel carbonized polymer dot (CPD) with one-and two-photon solvent responses was successfully synthesized, and its luminescent mechanism was studied by using Lippert–Mataga equation and Kamlet–Taft model. It is found that nitrogen doping and hydrogen bond play important roles in the solvatochromic phenomenon.
2567–2575
Carbothermal shock enabled facile and fast growth of carbon nanotubes in a second
Haomin Wang1, Huimin Wang1, Shuchen Zhang2, Yong Zhang1, Kailun Xia1, Zhe Yin1, Mingchao Zhang1, Xiaoping Liang1, Haojie Lu1, Shuo Li1, Jin Zhang2, and Yingying Zhang1,*
1 Tsinghua University, China
2 Peking University, China
A facile and ultra-fast carbothermal shock (CTS) process to synthesize CNTs is reported by employing Joule heating with a simple homemade setup. The whole process can be done in 50 ms. The obtained sample has a unique fluffy structure similar to the trichobothrium of spiders, endowing it versatile applications such as sensitive airflow sensors or efficient air filters.
2576–2581
One-step plasmonic welding and photolithographic patterning of silver nanowire network by UV-programable surface atom diffusion
Gui-Shi Liu1, Ting Wang1, Yexiong Wang1, Huajian Zheng1, YunsenChen1, ZijieZeng1, LeiChen1, YaofeiChen1, Bo-Ru Yang2,*, Yunhan Luo1,*, and Zhe Chen1
1 Jinan University, China
2 Sun Yat-Sen University, China
Silver nanowires (AgNWs) are conjugated with self-assembled nanoparticles of photosensitive diphenyliodonium nitrate and UV-curable cellulose to expedite surface atom diffusion and enhance plasmonic heating, respectively, which allows fully welding and finely patterning AgNW network with low level UV irradiation, yielding high-performance transparent electrode with a figure of merit of 1,000 and minimal patterning size of 3 µm .
2582–2591
Highly flexible ceramic nanofibrous membranes for superior thermal insulation and fire retardancy
Xue Mao1, Li Zhao1, Kun Zhang1,*, Yao-Yu Wang2, and Bin Ding3
1 Xi’an Polytechnic University, China
2 Northwest University, China
3 Donghua University, China
A series of highly flexible ceramic nanofibrous membranes with lightweight, ultralow thermal conductivity, superior mechanical and thermal stability are developed, which is ideal system for thermal superinsulation and fire retardancy with a wide range of uses from energy saving building applications to spacecraft.
2592–2598
Raman imaging-assisted customizable assembly of MOFs on cellulose aerogel
Zhanhong Yuan1, Dingding Meng1, Yingzhu Wu1, Guangqing Tang1, Ping Liang1,*, John H. Xin2, and Dongdong Ye1,*
1 Wuyi University, China
2 The Hong Kong Polytechnic University, Hong Kong, China
Using Raman imaging technology, we found an intuitive approach for visually observing the distribution of ions and metal–organic frameworks (MOFs) inside the cellulose aerogel and then realized the customizable assembly of MOFs on the cellulose aerogel.
2599–2607
Growth of centimeter scale Nb1−xWxSe2 monolayer film by promoter assisted liquid phase chemical vapor deposition
Boxing An1, Yang Ma1,2, Feihong Chu1, Xuhong Li2, Yi Wu1, Congya You1, Wenjie Deng1, Songyu Li2, and Yongzhe Zhang1,2,*
1 Beijing University of Technology, China
2 Beihang University, China
We present a simple but effective approach via promoter assisted liquid phase chemical vapor deposition (CVD) technique, in which the Nb1−xWxSe2 alloy growth is engineered by precisely controlling the quantity ratio of promoter to metal precursor, resulting in a series of monolayer Nb1−xWxSe2 alloy films with fully tunable compositions and centimeter scale on sapphire substrates.
2608–2615
Flexible, anti-damage, and non-contact sensing electronic skin implanted with MWCNT to block public pathogens contact infection
Duan-Chao Wang1, Hou-Yong Yu1,*, Lurong Jiang1, Dongming Qi1, Xinxing Zhang2,*, Lumin Chen1, Wentao Lv1, Weiqiang Xu1, and Kam Chiu Tam3
1 Zhejiang Sci-Tech University, China
2 State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University, China
3 University of Waterloo, Canada
A unique multi-walled carbon nanotube/polyvinyl alcohol (MWCNT/PVA, MCP) E-skin has been fabricated that was simultaneously flexible, non-contact sensing, cough monitoring, resistant to mechanical/chemical damage, and tactile mapping performance, which can be potentially applied in non-contact public human–machine interactions, simple ventilator, cough monitoring instrument, and tactile sensors.
2616–2625
Improving solar control of magnetism in ternary organic photovoltaic system with enhanced photo-induced electrons doping
Yujing Du1, Shiping Wang2, Lei Wang1,*, Shengye Jin2, Yifan Zhao1,*, Tai Min1, Zhuangde Jiang1, Ziyao Zhou1, and Ming Liu1
1 Xi'an Jiaotong University, China
2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
Photo-induced electrons doping is the essence of visible light regulation of magnetism. The number of photons injected determines the amount of magnetic variation.
2626–2633
Precursor compound enabled formation of aqueous-phase CdSe magic-size clusters at room temperature
Min Zhao, Qingyuan Chen, Yongcheng Zhu, Yuehui Liu, Chunchun Zhang, Gang Jiang, Meng Zhang*, and Kui Yu*
Sichuan University, China
We demonstrate a precursor compound (PC)-enabled formation pathway for the CdSe magic-size clusters (MSCs) with a sharp absorption peak at about 420 nm (MSC-420) in aqueous solutions. The coordination between primary amine with PCs may be responsible to the transformation from CdSe PCs to MSC-420.
2634–2642
Charge density wave phase suppression in 1T-TiSe2 through Sn intercalation
Mukhtar Lawan Adam1,3, Hongen Zhu1, Zhanfeng Liu1, Shengtao Cui1, Pengjun Zhang1, Yi Liu1, Guobin Zhang1, Xiaojun Wu2,*, Zhe Sun1,2,*, and Li Song1,*
1 University of Science and Technology of China, China
2 CAS Center for Excellence in Superconducting Electronics (CENSE), China
3 Bayero University, Nigeria
Charge density wave (CDW) is suppressed through Sn intercalation in 1T-TiSe2 due to charge doping, and the hybrid mechanism of exciton-phonon interaction and Jahn-Teller-like mechanism plays a significant role in the formation of CDW in 1T-TiSe2 and SnxTiSe2.
2643–2649
In situ observation of electrochemical Ostwald ripening during sodium deposition
Lin Geng1, Qiunan Liu1, Jingzhao Chen1, Peng Jia1, Hongjun Ye1, Jitong Yan1, Liqiang Zhang1,*, Yongfu Tang1,*, and Jianyu Huang1,2,*
1 Yanshan University, China
2 Xiangtan University, China
In situ environmental transmission electron microscopy (ETEM) revealed in real time an electrochemical Ostwald ripening (EOR) phenomenon during electrochemical deposition of Na metals. The EOR features the growth of a bigger particle at the expense of the small ones. We revealed two types of EOR: the first one involving electrochemical reaction, while the second one entailing breaking the surface shell and mass transport between the smaller and bigger particles .
2650–2654
Bottom-up construction of mesoporous supramolecular isomers based on a Pd3L6 triangular prism as templates for shape specific aggregation of polyiodide
Wen-Jie Shi1, Xin Li1, Peng Li2, and Ying-Feng Han1,*
1 Northwest University, China
2 Fudan University, China
We described the preparation of two mesoporous supramolecular isomers, α-[Pd3L16](PF6)12 and β-[Pd3L16](PF6)12 containing nanocage or one-dimensional mesoporous channel, which could be controllably generated through adjusting the solute concentration during crystal growth. In addition, the two supramolecular isomers were used as nanoporous reactors to induce the specific formation of polyiodides with different compositions and shapes.
2655–2660
Semiconductor
Research Articles
Observation of double indirect interlayer exciton in MoSe2/WSe2 heterostructure
Biao Wu1, Yunpeng Wang1, Jiahong Zhong1, Cheng Zeng1, Yassine Madoune1, Wanting Zhu1, Zongwen Liu2, and Yanping Liu1,3,*
1 Central South University, China
2 The University of Sydney, Australia
We demonstrate the observation of double indirect interlayer excitons in the MoSe2/WSe2 heterostructure (HS) using photoluminescence (PL) spectroscopy. The energy difference between the double peaks of the interlayer excitons (IXS) is 22 meV, and a reasonable explanation is given by density functional theory calculations.
2661–2666
Few-layered organic single-crystalline hetero-junctions for high-performance phototransistors
Xinzi Tian1, Jiarong Yao1, Lijuan Zhang1, Bin Han1, Jianwei Shi3, Jianwei Su4, Jie Liu5, Chunlei Li5, Xinfeng Liu3,*, Tianyou Zhai4, Lang Jiang5, Fangxu Yang1, Xiaotao Zhang1, Ye Zou5, Rongjin Li1,*, and Wenping Hu1,2,5
1 Tianjin University, China
2 International Campus of Tianjin University, China
3 National Center for Nanoscience and Technology, China
4 Huazhong University of Science and Technology (HUST), China
5 Institute of Chemistry, Chinese Academy of Sciences, China
High-performance organic phototransistors (OPTs) based on few-layered single-crystalline heterojunctions composed of two-dimensional molecular crystals (2DMCs) are proposed. Because of the molecular scale thickness of the 2DMCs and their formation of type I heterojunctions, both photogating and electrical gating are highly efficient, resulting in OPTs with high photoresponse.
2667–2673
Effects of interlayer coupling on the excitons and electronic structures of WS2/hBN/MoS2 van der Waals heterostructures
Xudan Zhu1, Junbo He1, Rongjun Zhang1,*, Chunxiao Cong1,*, Yuxiang Zheng1, Hao Zhang1, Songyou Wang1, Haibin Zhao1, Meiping Zhu2, Shanwen Zhang3, Shaojuan Li3, and Liangyao Chen1
1 Fudan University, China
2 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, China
3 Changchun Institute of Optics and Fine Mechanics and Physics, Chinese Academy of Sciences, China
Herein, monolayer hBN was inserted into bilayer WS2/MoS2 heterointerface, which alters the interlayer coupling strength. Then the modulated interlayer coupling effects on the excitonic properties and electronic structures of WS2/hBN/MoS2 heterostructure thin films were experimentally studied.
2674–2681
Flexible artificial synapse based on single-crystalline BiFeO3 thin film
Zhen Zhao1, Amr Abdelsamie2, Rui Guo1,3,*, Shu Shi3, Jianhui Zhao1, Weinan Lin3, Kaixuan Sun1, Jingjuan Wang1, Junling Wang2,4, Xiaobing Yan1,*, and Jingsheng Chen3,*
1 Hebei University, China
2 Nanyang Technological University, Singapore
3 National University of Singapore, Singapore
4 Southern University of Science and Technology, China
In this article, we demonstrate a flexible artificial synapse based on ferroelectric tunnel junctions (FTJs). Interestingly, the BiFeO3 ultra-thin film shows robust ferroelectric property, which leads to a steady memri-stive behaviour of the tunnel junctions, moreover, the freestanding tunnel junctions also demonstrate excellent plasticity learning characteristics in both flat (unbent) and bending states.
2682–2688
Binary-ternary transition metal chalcogenides interlayer coupling in van der Waals type-II heterostructure for visible-infrared photodetector with efficient suppression dark currents
Guoliang Xu1, Danmin Liu1,*, Songyu Li2, Yi Wu1, Zhenlu Zhang3, Shaobo Wang1, Zikun Huang1, and Yongzhe Zhang1,*
1 Beijing University of Technology, China
2 Beihang University, China
3 Beijing University of Posts and Telecommunications, China
An interlayer coupling photodetector is proposed. Its photoresponse mechanism is studied using photoluminescence spectroscopy, Kelvin probe force microscopy and electrical transport measurements to verify the photoinduced charge separation under illumination.
2689–2696
Cs2TiI6: A potential lead-free all-inorganic perovskite material for ultrahigh-performance photovoltaic cells and alpha-particle detection
Peng Zhao1, Jie Su1, Yujia Guo1, Lu Wang1, Zhenhua Lin1, Yue Hao1, Xiaoping Ouyang1,2,3, and Jingjing Chang1,*
1 Xidian University, China
2 Xijing University, China
3 Northwest Institute of Nuclear Technology, China
The excellent device performance can be realized based on new Cs2TiI6 material by both solar cell (single-junction: PCE = 22.70%, monolithic all-perovskite: PCE = 26.87%) and α-particle detection (CCE = 99.2%, μτh = 1 × 10–3 cm2/V). In addition, the solar cell and α-particle detector are able to withstand ultrahigh fluence proton beam up to 1013 and 1015 p/cm2 respectively .
2697–2705
Synthesis
Research Articles
Growth, coalescence, and etching of two-dimensional overlayers on metals modulated by near-surface Ar nanobubbles
Wei Wei1, Jiaqi Pan1, Haiping Lin2, Chanan Euaruksakul3, Zhiyun Li1, Rong Huang1, Li Wang1, Zhujun Wang4,5,*, Qiang Fu6,*, and Yi Cui1,*
1 Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, China
2 Soochow University, China
3 Synchrotron Light Research Institute, Thailand
4 Shanghai Tech University, China
5 Scientific Center for Optical and Electron Microscopy, ETH Zürich, Switzerland
6 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
Introduction of near-surface Ar nanobubbles can significantly weaken the surface step restriction effect and overlayer–substrate interaction and realize the “anisotropic to isotropic” growth transformation, seamless coalescence with an accelerated process, and etching–reg-rowth-triggered “round to hexagon” morphological transition. These findings provide a novel and promising method to modulate the dynamic processes of two-dimensional (2D) materials on surfaces.
2706–2714
Surface-roughness-adjustable Au nanorods with strong plasmon absorption and abundant hotspots for improved SERS and photothermal performances
Sijing Ding1, Liang Ma2,*, Jingru Feng1, Youlong Chen2, Dajie Yang3, and Ququan Wang4,*
1 China University of Geosciences (Wuhan), China
2 Wuhan Institute of Technology, China
3 North China Electric Power University, China
4 Wuhan University, China
Surface-roughness-adjustable Au nanorods are prepared by growing PbS, overgrowing Au, and dissolving PbS nanoparticles on the basis of smooth Au nanorods. The as-prepared Au nanorods possess abundant hotspots, high tunability, and enhancement of surface-enhanced Raman scattering (SERS) detection of Rhodamine B and significantly improved photothermal conversion efficiency, showing promising application in the fields of ultrasensitive molecular detection, biotherapy, and water evaporation.
2715–2721
Super-assembled sandwich-like Au@MSN@Ag nanomatrices for high-throughput and efficient detection of small biomolecules
Dantong Zhao1,3, Chunxia Ma2,*, Meng Gao2, Yong Li2, Bo Yang2, Hui Li1, Runhao Zhang2, Minglu Hao2, Jing Huang2, Kang Liang4, Pu Chen5, Lei Xie6, Rong Rong1,*, and Biao Kong6,*
1 Shandong University of Traditional Chinese Medicine, China
2 Qilu University of Technology (Shandong Academy of Sciences), China
3 Heze Institute for Food and Drug Control, China
4 The University of New South Wales, Australia
5 University of Waterloo, Canada
6 Fudan University, China
Super-assembled sandwich-like Au@MSN@Ag nanospheres were designed as a novel matrix for high-throughput and efficient detection of small biomolecules by laser desorption/ionization mass spectrometry (LDI-MS).
2722–2733
Tuning bandstructure of folded MoS2 through fluid dynamics
Zihan Zhao1,2, Weifeng Zhang2, Yan Zhang2, He Hao2, Shishu Zhang3, Lianming Tong3, Banghua Peng1,*, and Nan Liu2,*
1 Shihezi University, China
2 Beijing Normal University, China
3 Peking University, China
We demonstrate a fluidic dynamic strategy to regulate the interlayer coupling and fold mono-layer into bi-layer MoS2 in one step. This method is able to physically control the degree of interlayer coupling via fluid flow of polystyrene (PS) particles, forming bi-layer structures at various twist angles with different fluid flow direction, and microscopically modulate the interlayer coupling along the trajectory of fluid flow.
2734–2740
Chiral self-assembly of terminal alkyne and selenium clusters organic–inorganic hybrid
Zhi Chen1,2, Tao Lin3, Haohan Li2, Mingzi Sun4, Chenliang Su1,*, Bolong Huang4,*, and Kian Ping Loh2,*
1 Shenzhen University, China
2 National University of Singapore, Singapore
3 Shenzhen Technology University, China
4 The Hong Kong Polytechnic University, Hong Kong, China
The self-assembly inorganic–organic hybrid two-dimensional (2D) materials show untapped potential in different applications. By controlling the coverage of Se atoms, various chiral molecular networks containing Se,Se6, Se8, and terminal alkynes evolved with increasing concentrations of Se atoms on Ag(111). This work opens the new opportunities in achieving advanced hybrid 2D materials with precise control.
2741–2745
Hierarchical utilization of raw Ti3C2Tx MXene for fast preparation of various Ti3C2Tx MXene derivatives
Shunlong Zhang, Hangjun Ying, Pengfei Huang, Tiantian Yang, and Wei-Qiang Han*
Zhejiang University, China
We propose the guidelines of classified preparation and hierarchical utilization toward raw multi-layered MXenes, including step-by-step delamination, solution-phase flocculation, and alkali-heat treatment toward MXene sediments, achieving 100% utilization of Mxenes.
2746–2755
Deep eutectic solvent assisted facile synthesis of low-dimensional hierarchical porous high-entropy oxides
Jiale Wei1,2, Kai Rong1,2, Xiaolong Li1,2, Yuchen Wang1,2, Zhen-An Qiao3, Youxing Fang1,*, and Shaojun Dong1,2,*
1 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, China
2 University of Science and Technology of China, China
3 Jilin University, China
By using glucose-urea deep eutectic solvent (DES) as both a solvent and the carbon source of structure-directed template, the synthesis of various high-entropy-oxides (HEOs) with two-dimentional (2D) nanonets and one-dimentional (1D) nanowires was achieved, including rock-salt (Co, Cu, Mg, Ni, Zn)O, spinel (Co, Cr, Fe, Mn, Ni)3O4, and perovskite La(Co, Cr, Fe, Mn, Ni)O3. The as-prepared 2D hierarchical porous (Co, Cu, Mg, Ni, Zn)O with rock-salt structure was further applied as a lithium-ion batteries (LIBs) anode material, exhibiting outstanding cyclic stability.
2756–2763
A smart MXene-copolymeric molecularly imprinted hydrogel with dual-response and photothermal conversion performance for specific recognition of cis-diol compounds
Jingyang Zhao1, Yucheng Li1, Huatai Zhu1, Guifang Li1, Lingling Kang1, Jing Liu1, Jing He1, Jiandu Lei1,*, Luying Wang1,*, and Qiong Yan2,*
1 Beijing Forestry University, China
2 Beijing Jiaotong University, China
A smart MXene-copolymeric molecularly imprinted hydrogel (FMMIH) with temperature/pH dual response and photothermal conversion is designed to realize controllable adsorption and release of cis-diol compounds through dual recognitions of functional groups and geometric space. Furthermore, FMMIH can trigger a chain response of “light energy-heat energy-temperature rise-volume shrinkage”, which is beneficial to the elution of template molecules.
2764–2772
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