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Chemcial Industry and Engineering 2024, Vol. 41 Issue (5) :43-50    DOI: 10.13353/j.issn.1004.9533.20230502
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Ruthenium-doped preparation of mixed crystalline phase molybdenum carbide for hydrogen evolution reaction
ZHANG Jiazhu, SUN Yongli, YANG Xiaodong, YANG Na, JIANG Bin, XIAO Xiaoming, TANTAI Xiaowei, ZHANG Lvhong
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract Ru atoms were uniformly loaded on the surface of self-assembled micrometer spheres of nitrogen-doped ultrathin molybdenum carbide nanosheets by ion-exchange method, and the ratio of β-Mo2C and α-MoC1-x in Ru-MoxC NFs was adjusted by adjusting the content of ruthenium in the precursors, Ru-MoxC NFs-4 catalyst with excellent hydrogen precipitation performance was obtained, which exhibited very good hydrogen precipitation performance due to the better hydrogen adsorption energy of the mixed crystalline phase molybdenum carbide and the synergistic effect between Ru and Mo2C substrates. Ru-MoxC NFs-4 exhibited low overpotentials (η10=49 mV and η100=127 mV), a Tafel slope of 51.3 mV·dec-1, and good durability. This study provides a new idea for the design of efficient catalysts for hydrogen evolution reaction by tuning the carbide phase composition through doping with metals.
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Articles by authors
ZHANG Jiazhu
SUN Yongli
YANG Xiaodong
YANG Na
JIANG Bin
XIAO Xiaoming
TANTAI Xiaowei
ZHANG Lvhong
Keywordsmolybdenum carbide   hydrogen production   electrochemistry   ruthenium     
Received 2023-05-08;
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ZHANG Jiazhu, SUN Yongli, YANG Xiaodong, YANG Na, JIANG Bin, XIAO Xiaoming, TANTAI Xiaowei, ZHANG Lvhong.Ruthenium-doped preparation of mixed crystalline phase molybdenum carbide for hydrogen evolution reaction[J]  Chemcial Industry and Engineering, 2024,V41(5): 43-50
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