Jiandong Wu

Jilin University

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Jingxiang Zhao

Harbin Normal University

Xiaoqiang Cui

Jilin University

Jinchang Fan

Jilin University

Guangri Jia

Jilin University

David J. Singh

University of Missouri

Weitao Zheng

Jilin University

Xiaowen Ruan

City University of Hong Kong

Qiong Wu

Henan University of Technology

Changmin Hou

Jilin University

Huafeng Fan

Jilin University

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Jilin University

State Key Laboratory of Automotive Simulation and Control

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Jilin Medical University

State Council of the People's Republic of China

State Key Laboratory of Superhard Materials

Harbin Normal University

Xiamen University

Nanjing Agricultural University

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Stable Bimetallene Hydride Boosts Anodic CO Tolerance of Fuel Cells

ACS Energy Letters (2021)

Jiandong Wu Xiaoqiang Cui Jinchang Fan Jingxiang Zhao Qinghua Zhang

Active and durable anode electrocatalysts are of vital importance for practical implementation of fuel cells. However, the surface-adsorbed reaction intermediates, especially CO, easily poison and deactivate the electrocatalysts. Here, we report ultrathin molybdenum–palladium hydride (MoPdH) bimetallene as a high-efficiency electrocatalyst for the methanol oxidation reaction. This exhibits a 6.0-fold enhancement of mass activity relative to commercial Pd black catalyst. Alloying with Mo strongly enhances the H binding ability of Pd and thereby stabilizes the MoPdH bimetallene. The resulting ultrathin hydride structure and the stabilization of it by Mo alloying yields a MoPdH bimetallene with the outstanding CO tolerance. The stabilization is understood in terms of the Miedema rule, which thus provides a new opportunity for catalyst design boosting the commercialization of fuel cells based on stable bimetallene hydride nanosheets.

Palladium hydride

10.1021/acsenergylett.1c00614

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Citations (62)

High-valence Zr-incorporated nickel phosphide boosting reaction kinetics for highly efficient and robust overall water splitting

Chemical Engineering Journal (2022)

Huafeng Fan Jingjing Jia Dewen Wang Jinchang Fan Jiandong Wu

Overpotential

Phosphide

Oxygen evolution

Alkaline water electrolysis

10.1016/j.cej.2022.140908