期刊
ACS APPLIED ENERGY MATERIALS
卷 4, 期 5, 页码 4284-4289出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c00308
关键词
ruthenium; benchmark catalyst; hydrogen evolution; catalyst; Pt/C
资金
- National Key Research and Development Program of China [2018YFA0702001]
- National Natural Science Foundation of China [22071225]
- Fundamental Research Funds for the Central Universities [WK2060190103]
- Hefei National Synchrotron Radiation Laboratory [KY2060000175]
- the Recruitment Program of Thousand Youth Talents
Contrary to previous studies on bulk metals, nanoparticles of Ru supported on carbon (Ru/C) exhibit higher electrocatalytic performance for alkaline hydrogen evolution reactions (HERs) compared to Pt supported on carbon (Pt/C). Both commercial and homemade Ru/C catalysts are even more active than most reported Ru-based materials, suggesting that Ru/C should be used as a benchmark material for evaluating the alkaline HER performance of catalysts instead of Pt/C.
It has been widely accepted that Pt is more electrocatalytic than Ru for alkaline hydrogen evolution reactions (HERs), probably on the basis of the previous studies on bulk metals. Herein, we report that, in strong contrast with the previously reported results on bulk metals, the nanoparticular Ru supported on carbon (Ru/C) exhibits much higher alkaline HER performance than Pt supported on carbon (Pt/C). We further demonstrate that both commercial and homemade Ru/C catalysts are even more active than most reported Ru-based materials. These results suggest that Ru/C should be used as benchmark material instead of Pt/C for evaluating the alkaline HER performance of catalysts.
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