《纳米研究》2020年第8期目录
Review Articles
Flexible optoelectronic devices based on metal halide perovskites
Hao Chen1, Hao Wang2, Jiang Wu1,*, Feng Wang3, Ting Zhang1, Yafei Wang1, Detao Liu1, Shibin Li1,*, Richard V. Penty2, and Ian H. White2
1 University of Electronic Science and Technology of China, China
2 University of Cambridge, UK
3 Peking University, China
Recent progress of flexible perovskite optoelectronic devices is summarized. And the further developing trend is discussed.
1997–2018
2D nanomaterials for tissue engineering application
Jingyang Zhang1, Haolin Chen1, Meng Zhao2, Guiting Liu1,*, and Jun Wu1,3,*
1 Sun Yat-sen University, China
2 Shenzhen Lansi Institute of Artificial Intelligence in Medicine, China
3 Research Institute of Sun Yat-Sen University in Shenzhen, China
This scheme illustrates the diverse applications of two-dimensional (2D) nanomaterials in tissue engineering, including graphene, transition metal dichalcogenides, transition metal carbides, nitrides and carbonitrides, black phosphorus nanosheets, layered double hydroxides, 2D metal-organic frameworks (MOFs) and other types of 2D nanosheets.
2019–2034
Research Articles
Direct laser patterning of two-dimensional lateral transition metal disulfide-oxide-disulfide heterostructures for ultrasensitive sensors
Bolun Wang1, Hao Luo1, Xuewen Wang1, Enze Wang1, Yufei Sun1, Yu-Chien Tsai1, Jinxuan Dong1, Peng Liu1, Huanglong Li1, Yong Xu1,2, Sefaattin Tongay3, Kaili Jiang1, Shoushan Fan1, and Kai Liu1,*
1 Tsinghua University, China
2 RIKEN Center for Emergent Matter Science (CEMS), Japan
3 Arizona State University, USA
A two-dimensional lateral transition metal disulfide-oxide-disulfide heterostructure with a configuration of an ultrathin Nb2O5 channel and two metallic NbS2 electrodes is fabricated by a simple lithography-free, laser-patterning technique. The heterostructure can be used as an ultrasensitive two-terminal sensor based on the modulation of Nb2O5 surface conduction through the naturally adsorbed water molecules.
2035–2043
Facile synthesis of Au embedded CuOx–CeO2 core/shell nanospheres as highly reactive and sinter-resistant catalysts for catalytic hydrogenation of p-nitrophenol
Ke Wu1, Xin-Yu Wang1, Ling-Ling Guo2, Yue-Jiao Xu1, Liang Zhou1, Ze-Yu Lyu1, Kang-Yu Liu1, Rui Si2, Ya-Wen Zhang1, Ling-Dong Sun1,*, and Chun-Hua Yan1,3,*
1 Peking University, China
2 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, China
3 Lanzhou University, China
Au embedded CuOx–CeO2 core/shell nanospheres are successfully synthesized as highly reactive and sinter-resistant catalysts for catalytic hydrogenation of p-nitrophenol.
2044–2055
Atomically thin defect-rich Ni-Se-S hybrid nanosheets as hydrogen evolution reaction electrocatalysts
Jianpeng Sun1, Xiangting Hu2, Zhaodi Huang1, Tianxiang Huang1, Xiaokang Wang1, Hailing Guo1, Fangna Dai1,*, and Daofeng Sun1,*
1 China University of Petroleum (East China), China
2 Shandong University, China
The atomically thin Ni-Se-S based hybrid nanosheet (NiSe1.2S0.8) has been synthesized via a simple solvothermal method, and the thickness of NiSe1.2S0.8 nanosheets is only about 1.1 nm. Benefiting from the ultrathin nanostructure and rich defects, the optimal NiSe1.2S0.8 exhibits good electrocatalytic activity in acid solution.
2056–2062
Synergy between metallic components of MoNi alloy for catalyzing highly efficient hydrogen storage of MgH2
Meng Chen1,2, Yanhui Pu1, Zhenyang Li1, Gang Huang1, Xiaofang Liu1,*, Yao Lu1, Wukui Tang1, Li Xu3, Shuangyu Liu3, Ronghai Yu1,*, and Jianglan Shui1,*
1 Beihang University, China
2 COMAC Beijing Aircraft Technology Research Institute, China
3 Global Energy Interconnection Research Institute Beijing, China
The synergy between Mo and Ni components significantly improves the catalytic effect of MoNi alloy on hydrogenation/dehydrogenation kinetics of MgH2.
2063–2071
Direct bandgap engineering with local biaxial strain in few-layer MoS2 bubbles
Yang Guo1,2, Bin Li3, Yuan Huang1, Shuo Du1,2, Chi Sun1,2, Hailan Luo1, Baoli Liu1,2,4, Xingjiang Zhou1, Jinlong Yang3, Junjie Li1,2,4, and Changzhi Gu1,2,*
1 Institute of Physics, Chinese Academy of Sciences, China
2 University of Chinese Academy of Sciences, China
3 University of Science and Technology of China, China
4 Songshan Lake Materials Laboratory, China
In this letter, we used scanning photoluminescence and Raman spectroscopies to quantify the local strain over few-layer MoS2 (3–5 ML) bubbles and demonstrated a continuously varying strain distribution, which gives rise to a gradient direct bandgap profile.
2072–2078
Synergy of Fe-N4 and non-coordinated boron atoms for highly selective oxidation of amine into nitrile
Hong-Hui Wang1, Li-Bing Lv1, Shi-Nan Zhang1, Hui Su1, Guang-Yao Zhai1, Wei-Wei Lei2, Xin-Hao Li1,*, and Jie-Sheng Chen1
1 Shanghai Jiao Tong University, China
2 Deakin University, Australia
Couples of Fe-N4 site and non-coordinated boron atom are designed to reduce the energy barrier of the reversible conversion of imines as byproduct in catalytic oxidation reaction of amines, considerably promoting the selectivity to nitriles (> 99.9%) under mild conditions. The optimized FeNC+B also provides a turn-over frequency (TOF) value of 21.6 molbenzonitrile·molFe−1·h−1 (100 °C), outperforming benchmarked nonnoble-metal-based homogeneous catalyst by a factor of 3.4.
2079–2084
Ultra-high current gain tunneling hot-electron transfer amplifier based on vertical van der Waals heterojunctions
Xu Zhao1,*, Peng Chen1,2, Xingqiang Liu2,*, Guoli Li2, Xuming Zou2, Yuan Liu2, Qilong Wu2, Yufang Liu1,*, Woo Jong Yu3, and Lei Liao2
1 Hunan University, China
2 Henan Normal University, China
3 Sungkyunkwan University, Republic of Korea
The Au/Al2O3/BP/MoS2 tunneling hot-electron transfer amplifier continuously exhibits a high current on-off ratio of > 105, a high current density (JC) of ~ 1,000 A/cm2. It demonstrates a record common-emitter current gain of 1,384 with a nanowatt power consumption at room temperature.
2085–2090
Vapor phase growth of two-dimensional PdSe2 nanosheets for high-photoresponsivity near-infrared photodetectors
Weiting Xu, Jiayang Jiang, Huifang Ma, Zhengwei Zhang, Jia Li, Bei Zhao, Ruixia Wu, Xiangdong Yang, Hongmei Zhang, Bailing Li, Weining Shu, Zucheng Zhang, Bo Li*, Yuan Liu, Lei Liao, and Xidong Duan*
Hunan University, China
We reported the controllable synthesis of two-dimensional (2D) high-quality PdSe2 nanosheets on SiO2/Si substrate by chemical vapor deposition (CVD) and fabricated few-layer PdSe2 near-infrared photodetector with high photoresponsivity.
2091–2097
Engineered porous Ni2P-nanoparticle/Ni2P-nanosheet arrays via the Kirkendall effect and Ostwald ripening towards efficient overall water splitting
Yutai Wu1, Hui Wang1, Shan Ji2,*, Bruno G. Pollet3, Xuyun Wang1, and Rongfang Wang1,*
1 Qingdao University of Science and Technology, China
2 Jiaxing University, China
3 Norwegian University of Science and Technology (NTNU), Norway
Porous Ni2P nanoparticle/Ni2P nanosheet arrays are synthesized. Kirkendall effect and Ostwald ripening result in the structure of Ni2P arrays. Ni2P arrays showed high activity for overall water splitting.
2098–2105
A systematic assessment of hydroxyapatite nanoparticles used in the treatment of melanoma
Zhongtao Li, Jiaoqing Tang, Hongfeng Wu, Zhixin Ling, Siyu Chen, Yong Zhou, Bo Guo, Xiao Yang*, Xiangdong Zhu, Lin Wang*, Chongqi Tu, and Xingdong Zhang
Sichuan University, China
Specific nanohydroxyapatite possesses anti-melanoma ability via inhibition of tumor cell migration and cell phase transition.
2106–2117
NIR-II driven plasmon-enhanced cascade reaction for tumor microenvironment-regulated catalytic therapy based on bio-breakable Au–Ag nanozyme
Min Xu1, Qianglan Lu1, Yiling Song1, Lifang Yang1, Chuchu Ren1, Wen Li1, Ping Liu1, Yule Wang2,3, Yan Zhu2,3, and Nan Li1,*
1 Tianjin University, China
2 Tianjin University of Traditional Chinese Medicine, China
3 Tianjin International Joint Academy of Biotechnology and Medicine, China
Bio-breakable nanozymes based on glucose oxidase (GOx) loaded biomimetic Au–Ag hollow nanotriangles (Au–Ag–GOx HTNs) are designed, and they can trigger an NIR-II driven plasmon-enhanced cascade catalytic reaction through regulating tumor microenvironment for highly efficient tumor therapy.
2118–2129
Facile synthesis of Co and Ce dual-doped Ni3S2 nanosheets on Ni foam for enhanced oxygen evolution reaction
Xiaoxia Wu1,2,3, Tong Zhang2, Jiaxu Wei2, Pengfei Feng2, Xingbin Yan1,3,*, and Yu Tang1,2,*
1 Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, China
2 Lanzhou University, China
3 University of Chinese Academy of Sciences, China
Co and Ce dual-doped Ni3S2 nanosheets were fabricated by a one-step solvothermal method, which can act as a highly efficient oxygen evolution reaction (OER) electrode in alkaline condition benefiting from the rational dual-dopant.
2130–2135
3D uniform nitrogen-doped carbon skeleton for ultra-stable sodium metal anode
Ben Liu1, Danni Lei2, Jin Wang1, Qingfei Zhang1, Yinggan Zhang1, Wei He1, Hongfei Zheng1, Baisheng Sa3, Qingshui Xie1, Dong-Liang Peng1, and Baihua Qu1,*
1 Xiamen University, China
2 Sun Yat-Sen (Zhongshan) University, China
3 Fuzhou University, China
The three-dimensional (3D) nitrogen-doped carbon skeleton has the advantage of low sodium nucleation overpotential and strong nitrogen–carbon bonding on sodium metal anode. It achieves an ultra-stable cycling performance for 3,500 h with 2 mA/cm2 and 2 mAh/cm2.
2136–2142
Catalytic Co9S8 decorated carbon nanoboxes as efficient cathode host for long-life lithium-sulfur batteries
Weiwei Sun*, Yujie Li , Shuangke Liu, Qingpeng Guo, Yuhao Zhu, Xiaobin Hong, Chunman Zheng*, and Kai Xie
National University of Defense Technology, China
This work describes a facile strategy to synthesize novel Co9S8@C nanoboxes (NBs) as effective cathode host for Li-S batteries. Benefiting from their unique structural characteristics, the Co9S8@C NBs can not only anchor high content of sulfur and polysulfide intermediates but also enables fast electron/ion transfer and superior redox reaction kinetics. As a result, Li-S batteries based on S/Co9S8@C NBs cathode achieve a high reversible capacity, superior rate performances, and a long cycling life.
2143–2148
Super-resolution quantification of nanoscale damage to mitochondria in live cells
Xintian Shao1,2,3, Qixin Chen4, Lianting Hu5, Zhiqi Tian2, Liuyi Liu6, Fei Liu1,3, Fengshan Wang3, Peixue Ling1,3,*, Zong-Wan Mao6,*, and Jiajie Diao2,*
1 National-Local Joint Engineering Laboratory of Polysaccharide Drugs, China
2 University of Cincinnati College of Medicine, USA
3 Shandong University, China
4 Shandong First Medical University & Shandong Academy of Medical Sciences, China
5 Wuhan University, China
6 Sun Yat-Sen University, China
A novel automated super-resolution quantification strategy based on structured illumination microscopy can resolve the distribution of mitochondrial morphology and thus indicate a new direction for evaluating damage to mitochondrial morphology and cristae at the nanoscale level in living cells.
2149–2155
Efficient elimination of multidrug-resistant bacteria using copper sulfide nanozymes anchored to graphene oxide nanosheets
Wanshun Wang1, Binglin Li1, Huili Yang1, Zefeng Lin1, Lingling Chen1, Zhan Li1, Jiayuan Ge1, Tao Zhang1, Hong Xia1,*, Lihua Li2,*, and Yao Lu1,3,*
1 The Second School of Clinical Medicine of Southern Medical University, China
2 South China University of Technology, China
3 Southern Medical University, China
A copper sulfide/graphene oxide (CuS/GO) nanocomposite (NC) was prepared via a facile hydrothermal method. The unique needle-like structure and enzyme-like properties of CuS/GO NC enable efficient elimination of methicillin-resistant Staphylococcus aureus (MRSA) infection by acting both physically and chemically to damage bacterial cells.
2156–2164
Visualized and cascade-enhanced gene silencing by smart DNAzyme-graphene nanocomplex
Lingjie Ren1, Xiaoxia Chen2, Chang Feng1, Lei Ding1, Xiaomin Liu1, Tianshu Chen1, Fan Zhang1, Yanli Li1, Zhongliang Ma1, Bo Tian1,*, and Xiaoli Zhu1,*
1 Shanghai University, China
2 Shanghai Jiao Tong University, China
A smart response DNAzyme-loaded nano-graphene oxide (GO) could silence the gene effectively through a dual-targeted and cascade-enhanced strategy. Our work presents a pure bio-therapeutic strategy that has positive implications for enhancing tumor treatment and avoiding side effects of chemotherapeutics.
2165–2174
Bubble-like Fe-encapsulated N,S-codoped carbon nanofibers as efficient bifunctional oxygen electrocatalysts for robust Zn-air batteries
Yiyi She1, Jin Liu1, Hongkang Wang2, Li Li3, Jinsong Zhou1, and Michael K.H. Leung1,*
1 City University of Hong Kong, Hong Kong, China
2 Xi’an Jiaotong University, China
3 Jiangsu University of Technology, China
The bubble-like Fe-encapsulated N,S co-doped carbon nanofibers possess bifunctional catalytic activities for oxygen reduction and evolution reactions, which is responsible for serving as highly-active electrocatalysts of the air electrodes in rechargeable Zn-air batteries.
2175–2182
Enhanced catalytic degradation of organic pollutants by multi-stimuli activated multiferroic nanoarchitectures
Fajer Mushtaq*, Xiangzhong Chen, Harun Torlakcik, Bradley J. Nelson, and Salvador Pané
Institute of Robotics and Intelligent Systems (IRIS), Switzerland
Three shapes of core-shell magnetoelectric visible-light active nanocatalysts composed of CoFe2O4@BiFeO3 were fabricated, i.e., nanooctahedrons, nanocubes, and nanowires. They were all successful in harnessing energy from three different energy sources, including UV–visible (UV–vis) light, mechanical vibrations, and alternating magnetic fields, and initiate a series of redox reactions to destroy organic contaminants. Additionally, our nanocatalysts have the unique ability to readily adapt to changing environments, and scavenge energy from multiple wireless sources, simultaneously, to deliver enhanced water remediation.
2183–2191
Gate controllable spin transistor with semiconducting tunneling barrier
Shuqin Zhang, Renrong Liang*, Xiawa Wang, Wenjie Chen, Weijun Cheng, Jing Wang, and Jun Xu
Tsinghua University, China
A graphene spin transistor with semiconducting MoS2 as tunneling barrier is fabricated. It shows gate dependent spin switch signal.
2192–2196
Light-triggered NO-releasing nanoparticles for treating mice with liver fibrosis
Hongxia Liang1,*, Zhenhua Li2,3, Zhigang Ren1, Qiaodi Jia1, Linna Guo4, Shasha Li1, Hongyu Zhang1, Shiqi Hu2,3, Dashuai Zhu2,3, Deliang Shen1, Zujiang Yu1,*, and Ke Cheng2,3,*
1 The First Affiliated Hospital of Zhengzhou University, China
2 North Carolina State University, USA
3 University of North Carolina at Chapel Hill and North Carolina State University, USA
4 Zhengzhou University, China
We fabricated a NO-donor-loaded upconversion nanoparticle to target activated hepatic stellate cells and reverse liver fibrosis by inducing hepatic stellate cell apoptosis.
2197–2202
Indium doped CsPbI3 films for inorganic perovskite solar cells with efficiency exceeding 17%
Xiaomei Li1,2, Kaili Wang1, Femi Lgbari1, Chong Dong1, Wenfan Yang1, Chang Ma1, Heng Ma2, Zhao-Kui Wang1,*, and Liang-Sheng Liao1
1 Soochow University, China
2 Henan Normal University, China
A promising device for high performance and excellent stability in inorganic CsPbI3 perovskite solar cell is demonstrated. The addition of In3+ into CsPbI3 films can enter the perovskite crystal lattice and partially replace Pb2+, which could retard the crystallization to form the large grain, free-pinholes, and compact films, resulting in the good charge transport and stability.
2203–2208
Mesoporous silica decorated with platinum nanoparticles for drug delivery and synergistic electrodynamic-chemotherapy
Tongxu Gu1, Tong Chen1, Liang Cheng2, Xiang Li1,*, Gaorong Han1, and Zhuang Liu2,*
1 Zhejiang University, China
2 Soochow University, China
Silica-Dox@Chitosan-Pt (SDCP) nanoparticles are fabricated for electro-driven generation of reactive oxygen species and controllable drug release. This is the first study to combine electrodynamic therapy and chemotherapy for developing a synergetic nanoplatform.
2209–2215
A novel clustered SPIO nanoplatform with enhanced magnetic resonance T2 relaxation rate for micro-tumor detection and photothermal synergistic therapy
Hongwei Lu1,2, Yongjing Xu2, Ruirui Qiao3, Ziwei Lu4, Pin Wang5, Xindan Zhang6, An Chen1, Liming Zou2,*, and Zhongling Wang1,*
1 Shanghai Jiaotong University, China
2 Donghua University, China
3 Monash University, Australia
4 The First Affiliated Hospital of Soochow University, China
5 Affiliated Hospital of Nanjing University Medical School, China
6 Southern University of Science and Technology, China
In this nanoplatform, super-paramagnetic iron oxides (SPIOs) were clustered on the surface of carbon nanotubes (CNTs), leading to the enhanced T2 relaxation rate and photothermal effect. What’s more, the targeting ability to tumor was introduced with a novel dendrimer (PEG-B4) which was designed for CNTs modification and further strengthened the imaging performances and therapeutic effects.
2216–2225
Controllable growth and flexible optoelectronic devices of regularly-assembled Bi2S3 semiconductor nanowire bifurcated junctions and crosslinked networks
Yi Hu1, Lingyun Mao1, Xin Yuan1, Jingyu Lu1, Renpeng Chen1, Tao Chen1, Wenjun Zhang1, Xiaolan Xue1, Wen Yan1, Mohammadreza Shokouhimehr2, Xiao Li Zhang3, and Zhong Jin1,4,*
1 Nanjing University, China
2 Seoul National University, Republic of Korea
3 Zhengzhou University, China
4 Shenzhen Research Institute of Nanjing University, China
Regularly-assembled Bi2S3 nanowire bifurcated junctions and crosslinked networks have been controllably prepared by van der Waals epitaxy growth. The flexible optoelectronic devices are directly fabricated and show high photocurrent retention after bending for over 1,000 times.
2226–2232
Investigating molecular orbitals with submolecular precision on pristine sites and single atomic vacancies of monolayer h-BN
Liwei Liu1,2,*, Thomas Dienel2,3, Gino Günzburger2, Teng Zhang1, Zeping Huang1, Cong Wang4, Roland Widmer2, Wei Ji4, Yeliang Wang1, and Oliver Gröning2,*
1 Beijing Institute of Technology, China
2 Swiss Federal Laboratories for Materials Science and Technology, Switzerland
3 Cornell University and NSF-MIP Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM), USA
4 Renmin University of China, China
By reversible manipulation of individual MnPc molecules between pristine sites and single atomic vacancies in the h-BN lattice, the conformation and orbitals of the MnPc are tuned with submolecular precision.
2233–2238
Zn-doping enhances the photoluminescence and stability of PbS quantum dots for in vivo high-resolution imaging in the NIR-II window
Xiulei Shi1, Song Chen1, Meng-Yao Luo2, Biao Huang2, Guozhen Zhang3, Ran Cui2, and Mingxi Zhang1,*
1 Wuhan University of Technology, China
2 Wuhan University, China
3 University of Science and Technology of China, China
Zn dopants expediently engineer the emission bandgap of host PbS quantum dots with better optical properties for the noninvasive in vivo imaging with high-resolution.
2239–2245
Rod-shape inorganic biomimetic mutual-reinforcing MnO2–Au nanozymes for catalysis-enhanced hypoxic tumor therapy
Lifang Yang1, Chuchu Ren1, Min Xu1, Yilin Song1, Qianglan Lu1, Yule Wang2,3, Yan Zhu2,3, Xinxing Wang4,*, and Nan Li1,*
1 Tianjin University, China
2 Tianjin University of Traditional Chinese Medicine, China
3 Tianjin International Joint Academy of Biotechnology and Medicine, China
4 Tianjin Institute of Environmental and Operational Medicine, China
The rod-like biomimetic hybrid inorganic nanozymes linked mutually reinforcing cycle, through which effectively enhanced radiation therapy (RT) effect and starvation-promoted mild photothermal therapy were achieved by accelerated O2 generation, acute glucose consuming induced downregulation expression of heat shock protein (HSP) against the hypoxic environment.
2246–2258
Exploring porous zeolitic imidazolate frame work-8 (ZIF-8) as an efficient filler for high-performance poly(ethyleneoxide)-based solid polymer electrolytes
Zhiwen Lei1, Jinlai Shen1, Weide Zhang1, Qingrong Wang2, Jun Wang2,*, Yonghong Deng2,*, and Chaoyang Wang1,*
1 South China University of Technology, China
2 Southern University of Science and Technology, China
Zeolitic imidazolate frame work-8 (ZIF-8) filled poly (ethyleneoxide) (PEO) solid polymer electrolyte exhibits improved ionic conductivity as well as lithium ion transference number.
2259–2267
Cobalt-based metal–organic framework as a dual cooperative controllable release system for accelerating diabetic wound healing
Jiankai Li1, Fang Lv2,4, Jinxiu Li1, Yuxin Li2, Jingduo Gao2, Jian Luo2, Feng Xue4,*, Qinfei Ke1,3,*, and He Xu1,*
1 Shanghai Normal University, China
2 East China Normal University, China
3 Shanghai Institute of Technology, China
4 Southern Medical University Affiliated Fengxian Hospital, China
A cobalt-based metal-organic framework (ZIF-67) was introduced as carrier for loading a pro-angiogenic small molecular drug (dimethyloxalylglycine, DMOG) and a dual cooperative controllable release system has been designed by incorporating the drug-loaded ZIF-67 nanoparticles into the micro-patterned poly (L-lactic acid) (PLLA)/gelatin nanofibrous scaffolds to achieve a long-term angiogenic therapy on the diabetic wound beds, which provided a new strategy for promoting diabetic wound healing.
2268–2279
Nitrogen reduction reaction on small iron clusters supported by N-doped graphene: A theoretical study of the atomically precise active-site mechanism
Chaonan Cui1,2, Hongchao Zhang1,2, and Zhixun Luo1,2,*
1 Institute of Chemistry, Chinese Academy of Sciences, China
2 University of Chinese Academy of Sciences, China
We studied the nitrogen reduction reaction (NRR) on small iron clusters supported by N-doped graphene (–NxG) and found Fe4-N4G exhibits the most prominent NRR performance among the studied clusters, shedding light on size-dependent synergistic effect of active sites for such metal cluster catalysts.
2280–2288
Phase boundary engineering of metal-organic-framework-derived carbonaceous nickel selenides for sodium-ion batteries
Shiyao Lu1,3, Hu Wu1, Jingwei Hou2,6, Limin Liu1, Jiao Li1, Chris J. Harris2, Cheng-Yen Lao2, Yuzheng Guo4, Kai Xi2,*, Shujiang Ding1,*, Guoxin Gao1,*, Anthony K. Cheetham2,5, and R. Vasant Kumar2
1 Xi’an Jiaotong University, China
2 University of Cambridge, UK
3 City University of Hong Kong, Hong Kong, China
4 Wuhan University, China
5 University of California, Santa Barbara, USA
6 University of Queensland, Australia
We developed hierarchical metal-organic framework (MOF)-derived carbonaceous nickel selenides with bi-phase composition, which demonstrates highly enhanced sodium storage capability at 1 A/g for 2,000 cycles. The phase boundary engineering is conducive to fabricate novel composites/hybrids for applications in batteries, catalysis, sensors, and environmental remediation.
2289–2298
Oxygen defects boost polysulfides immobilization and catalytic conversion: First-principles computational characterization and experimental design
Qiu He1, Bin Yu1, Huan Wang1, Masud Rana2, Xiaobin Liao1, and Yan Zhao1,3,*
1 Wuhan University of Technology, China
2 The University of Queensland, Australia
3 Wuhan University, China
Density functional theory (DFT) is applied to profoundly reveal the functional mechanism of defects for lithium-sulfur battery based on oxygen defective TiO2, and the DFT calculations show that oxygen defects boost polysulfides immobilization and reaction kinetics. Furthermore, a high-performance sulfur host combining the defective TiO2 and three-dimensional graphene is designed, which achieves a high areal capacity of 14.6 mAh·cm−2.
2299–2307
点击“阅读原文”查看完整目录
Previous Contents：
Nano Research公众号
微信号 : Nano_Research
网址：www.thenanoresearch.com