Trends and Descriptors of Metal-Modified Transition Metal Carbides for Hydrogen Evolution in Alkaline Electrolyte

被引:96
|
作者
Zhang, Qian [1 ]
Jiang, Zhao [2 ]
Tackett, Brian M. [1 ]
Denny, Steven R. [1 ]
Tian, Boyuan [3 ]
Chen, Xi [4 ]
Wang, Bo [4 ]
Chen, Jingguang G. [1 ]
机构
[1] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA
[2] Xi An Jiao Tong Univ, Dept Chem Engn, Xian 710049, Shaanxi, Peoples R China
[3] Global Energy Interconnect Res Inst Co Ltd, State Key Lab Adv Transmiss Technol, Beijing 102209, Peoples R China
[4] Global Energy Interconnect Res Inst North Amer, San Jose, CA 95134 USA
关键词
hydrogen evolution reaction (HER); transition metal carbides (TMC); density functional theory (DFT); hydroxyl binding energy (OHBE); hydrogen binding energy (HBE); ELECTROCHEMICAL STABILITY; LOW-COST; WIDE PH; ELECTROCATALYSTS; WC; OXIDATION; CARBON; WATER; MOLECULES; EXCHANGE;
D O I
10.1021/acscatal.8b03990
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this study, the experimentally measured hydrogen evolution reaction exchange current densities for metal monolayer-modified transition metal carbides (TMCs) are correlated with density functional theory calculations of adsorbed hydrogen and hydroxyl binding energies. The correlation reveals a volcano relationship in alkaline electrolytes, while the hydroxyl binding energy does not appear to show a strong correlation. These results should provide guidance for further improving the electrocatalytic activity of metal modified TMCs in an alkaline environment.
引用
收藏
页码:2415 / 2422
页数:15
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