典型文献
One stone two birds:Vanadium doping as dual roles in self-reduced Pt clusters and accelerated water splitting
文献摘要：
Integrating active Pt clusters into transition-metal oxides with water-dissociation ability is effective to prepare a bifunctional electrocatalyst for water splitting in alkaline.However,the additional utilization of a reductant and/or the operation at the elevating temperature causes the over-growth and agglomer-ation of Pt clusters,thus losing the high catalytic performance.Herein,we report that V dopant not only favors self-reducing Pt clusters on NiFe layered double hydroxide(LDH)(Pt/NiFeV)at room temperature,but also regulates interfacial charge redistribution to enhance the water-splitting performance.Experimental and theoretical studies reveal that V dopant into NiFe LDH triggers more electrons to trans-fer to adjacent Fe atoms,thus leading to a higher reducing ability compared to that without V-doping.When used as water-splitting electrocatalyst,V doping promotes electron loss of Pt clusters in Pt/NiFeV,optimizing the free energy of hydrogen adsorption and proton recombination kinetics at the cath-ode.Meanwhile,it also moves the d-band center of Ni away from the Fermi level to optimize the adsorp-tion of *OH intermediates and facilitate the desorption of oxygen molecules at the anode.Thereby,Pt/NiFeV exhibits much higher bifunctional performance than V-free Pt/NiFe LDH toward both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).This work can spark inspiration of design-ing other bifunctional electrocatalysts for energy conversion and storage.
文献关键词：
中图分类号：
作者姓名：
Yihan Feng;Zichuang Li;Shanlin Li;Minghui Yang;Ruguang Ma;Jiacheng Wang
作者机构：
State Key Laboratory of High-Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences,Ningbo 315201,Zhejiang,China
文献出处：
引用格式：
[1]Yihan Feng;Zichuang Li;Shanlin Li;Minghui Yang;Ruguang Ma;Jiacheng Wang-.One stone two birds:Vanadium doping as dual roles in self-reduced Pt clusters and accelerated water splitting)[J].能源化学,2022(03):493-501
A类：
NiFeV
B类：
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AB值：
0.584317
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