Electronic modulation with Ru nanoclusters decorated CoP nanowire arrays for alkaline and acidic hydrogen evolution reaction

In this study, we meticulously prepared electrocatalysts in the form of Ru nanoclusters-decorated CoP nanowire arrays supported on carbon cloth (Ru@CoP/CC) for HER under both alkaline and acidic conditions. Ru@CoP/CC exhibited exceptional catalytic activity for hydrogen evolution, showcasing overpot...

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Bibliographic Details
Published inInternational journal of hydrogen energy Vol. 59; pp. 1205 - 1213
Main Authors Sun, Dongfeng, Qiang, Pengpeng, Yu, Yuan, Zhang, Jingyun, Huang, Linyin, Qu, Yanning, Su, Qingmei, Xu, Bingshe
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 15.03.2024
Subjects
CoP
Electrocatalysts
Hydrogen energy
Hydrogen evolution reaction
Nanowire arrays
Ru nanoclusters
Water splitting
Hydrogen energy
Water splitting
CoP
Electrocatalysts
Hydrogen evolution reaction
Ru nanoclusters
Nanowire arrays
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Summary:In this study, we meticulously prepared electrocatalysts in the form of Ru nanoclusters-decorated CoP nanowire arrays supported on carbon cloth (Ru@CoP/CC) for HER under both alkaline and acidic conditions. Ru@CoP/CC exhibited exceptional catalytic activity for hydrogen evolution, showcasing overpotentials of 48 mV and 66 mV (10 mA/cm2) in acidic and alkaline media, respectively, which closes to 20% of commercial Pt/C catalysts. Moreover, they showcased outstanding durability, a crucial aspect for their practical application in hydrogen production. Furthermore, this research employed DFT computations to attain a comprehensive understanding of the electronic and structural modifications brought about by the integration of Ru nanoclusters. Ru nanoclusters could coordination environment of CoP, and then effectively accelerate the catalytic reaction. This method opens up a new way to reduce the amount of precious metals in the electrocatalyst, and is helpful to the development of high-performance HER electrocatalyst. •Ru@CoP/CC electrocatalyst is prepared by hydrothermal and phosphorization process.•Ru nanoclusters alter the local electron distribution around the CoP.•The coupling effect of Ru and CoP enhances the performance of HER.•Ru@CoP/CC electrocatalyst presents excellent acidic and alkaline HER performance.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2024.02.053