电催化近期热点文章
作者:卢帮安 责编:卢帮安
HER热点文章
1. High-Performance Rh2P Electrocatalyst for Efficient Water Splitting
J.Am. Chem. Soc., 2017, 139 (15), pp 5494–5502
溶剂热合成Rh2P催化剂,P在表面富集,对HER和OER展现优异的催化活性
2. A Study of the Mechanism of the Hydrogen Evolution Reaction on Nickel by Surface Interrogation Scanning ElectrochemicalMicroscopy
J.Am. Chem. Soc., 2017, 139 (13), pp 4854–4858
用扫描电化学显微技术研究了碱性介质中Ni对HER的催化作用,研究认为,低价态Ni氧化物是活性中心,决速步骤是Volmer反应。
3. Efficient hydrogen production on MoNi4 electrocatalysts with fast water dissociation kinetics
Nature Communications DOI: 10.1038/ncomms15437
合成MoNi4/MoO2@Ni催化剂,在碱性条件下对HER反应,10mA cm-2下的过电位为15mV,Tafel斜率为30mV/dec。理论计算和实验表明,MoNi4表面发生快速析氢过程,
4.Silica-Polypyrrole Hybrids as High-Performance Metal-Free Electrocatalysts for Hydrogen EvolutionReaction in Neutral Media
Angew.Chem. Int. Ed. DOI: 10.1002/anie.201702934
碳纤维负载的SiO2和PPy的复合催化剂在中性溶液中对HER反应展现了优异的低过电位、低Tafel斜率和长期的稳定性。其中SiO2用来吸附和活化H2O。
OER热点文章
1. A Dendritic Nanostructured Copper Oxide Electrocatalyst for the Oxygen Evolution Reaction
Angew.Chem. Int. Ed. 2017, 56, 4792
以泡沫Cu为前驱体合成Cu/CuO催化剂,在碱性溶液中对OER展现了优异的催化性能,10mA cm-2的过电位为0.29V
2. Trimetallic Oxyhydroxide Coralloids for Efficient Oxygen Evolution Electrocatalysis
Angew. Chem. Int. Ed. 2017, 56, 4502.
合成泡沫镍负载的W0.5Co0.4Fe0.1三元金属水合氧化物,在碱性OER的活性受Fe含量的影响,100 mA cm−2的过电位近为31mV。
3. Engineering High-Energy Interfacial Structures for High-Performance Oxygen-Involving Electrocatalysis
Angew. Chem. Int. Ed.. DOI: 10.1002/anie.201701531
CoO 纳米团簇和高指数的 Mn3O4的复合物,在碱性溶液中对ORR和OER均具有优异的催化性能。
4. Boostingthe Performance of the Nickel Anode in the Oxygen Evolution Reaction by Simple Electrochemical Activation
Angew. Chem. Int. Ed. 2017, 56, 5061.
将Ni电极表面氧化成NiOOH,同时和溶液中碱金属离子的协同作用,提升碱性OER活性,在10mA的电流下,电位低于1.4V。
5. Identifying the Active Surfaces of Electrochemically Tuned LiCoO2 for Oxygen EvolutionReaction
J. Am. Chem. Soc., 2017, 139 (17), pp 6270–6276
通过对层状锂钴氧化物进行电化学脱锂,其OER活性大幅提升,原因是增加了Co4+的含量。
ORR热点文章
1. Surface Proton Transfer Promotes Four-Electron Oxygen Reduction on Gold Nanocrystal Surfaces in Alkaline Solution
J.Am. Chem. Soc., DOI: 10.1021/jacs.7b01735
合成了不同形貌的Au纳米粒子,ORR性能与Au的形貌有很大关系,结合理论计算和实验结果,作者认为吸附态H2O中的质子传递是这一现象的主要原因。
2. A Bifunctional Hybrid Electrocatalyst for Oxygen Reduction and Evolution: Cobalt Oxide Nanoparticles Strongly Coupled to B,N-Decorated Graphene
Angew.Chem. Int. Ed.. DOI: 10.1002/anie.201702430
Co氧化物和B,N掺杂的石墨烯的复合催化剂,在碱性溶液中展现了优异的ORR和OER催化性能。
CRR热点文章
1. Efficient Electrocatalytic Reduction of CO2by Nitrogen-Doped Nanoporous Carbon/Carbon Nanotube Membranes - A Step Towards the Electrochemical CO2 Refinery .
Angew.Chem. Int. Ed. DOI: 10.1002/anie.201703720
氮掺杂的碳纳米管膜对CO2电还原成甲酸的法拉第效率高达81%,同时具有较好的稳定性。
2. Enhancing CO2 Electroreduction with the Metal–Oxide Interface
J. Am. Chem. Soc., 2017, 139 (16), pp 5652–5655
Au–CeOx的复合物对CO2的电还原的活性远高于单独的Au和CeO2,Au和CeOx的界面可以吸附活化CO2,增强催化活性。
其他电催化热点
1. Sub-4 nm PtZn Intermetallic Nanoparticlesfor Enhanced Mass and Specific Activities in Catalytic Electrooxidation Reaction
J.Am. Chem. Soc., 2017, 139 (13), pp 4762–4768
借助介孔二氧化硅模板辅助合成碳纳米管负载的超细PtZn金属间纳米粒子,在酸性和碱性溶液对甲醇电氧化均展现了优异的催化活性。
2. IrPdRu/C as H2 Oxidation Catalysts for Alkaline Fuel Cells
J.Am. Chem. Soc., DOI: 10.1021/jacs.7b02434
IrPdRu/C在碱性溶液中对H2的电化学氧化活性高于Pt/C和Ir/C,同时贵金属用量也大大降低。
3. Synthesis of Low Pt-Based QuaternaryPtPdRuTe Nanotubes with Optimized Incorporation of Pd for Enhanced Electrocatalytic Activity
J.Am. Chem. Soc., 2017, 139 (16), pp 5890–5895
通过优化PtPdRuTe纳米管中Pd含量,可以增强其对甲醇的电化学氧化活性。
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