RuCo alloy nanoparticles embedded within N-doped porous two-dimensional carbon nanosheets: a high-performance hydrogen evolution reaction catalyst

Jin Hui Wang, Shao Wei Yang, Fu Bin Ma, Yi Ke Zhao, Shi Nuo Zhao, Zheng Yu Xiong, Dong Cai, Hai Dong Shen, Kai Zhu, Qiu Yu Zhang, Yue Ling Cao, Tian Shuai Wang, He Peng Zhang

科研成果: 期刊稿件文章同行评审

65 引用 (Scopus)

摘要

Developing cost-effective electrocatalysts with high activity and stability especially at high current density is of great significance for the large-scale commercial application of electrochemical water splitting to hydrogen production but still remains challenging. Herein, we report an effective confinement pyrolysis strategy to fabricate embedded ruthenium–cobalt nanoclusters supported on N-doped porous two-dimensional carbon nanosheets (RuCo@CN). Markedly, the embedded structure can effectively prevent the migration, agglomeration, and leaching of nanoparticles, thus endowing the RuCo@CN catalyst with high stability. To be exact, high stability with up to 650 h can be achieved at high current density (− 500 and − 1000 mA·cm−2). Besides, the RuCo@CN catalysts also exhibit highly reactive with low overpotentials of only 11 mV at − 10 mA·cm−2. Density functional theory calculations reveal that the introduction of cobalt reduces the decomposition barrier of H2O for RuCo@CN alloy, thus promoting hydrogen evolution reaction.

源语言英语
页(从-至)114-123
页数10
期刊Tungsten
6
1
DOI
出版状态已出版 - 3月 2024

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