Strong electronic coupling between ruthenium single atoms and ultrafine nanoclusters enables economical and effective hydrogen production

Yao, Hanxu ¹Wang, Xingkun ¹Li, Kai ²Li, Cheng ³Zhang, Canhui ¹Zhou, Jian ²Cao, Zhengwen ²Wang, Huanlei ¹Gu, Meng ³Huang, Minghua ¹Jiang, Heqing²

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作者信息

1. Ocean Univ China
2. Chinese Acad Sci
3. Southern Univ Sci & Technol
折叠

Abstract

Although Ru-based materials have been recognized as promising electrocatalysts for hydrogen evolution reaction (HER), further improving the mass activity and guaranteeing the high-throughput H-2 production of the catalysts is of vital importance. Herein, Ru single atoms coupling with ultrafine nanoclusters on hierarchical porous N-doped carbon (NMC-RuSA+NC) has been synthesized as economical and effective HER catalysts. Density function theory and the experimental results reveal that the strong electronic coupling effects between Ru single atoms and nanoclusters and unique hierarchical structure enable NMC-Ru(SA+NC )with the ultralow overpotential for achieving 500 mA cm(-2) in alkaline and acidic conditions. More importantly, the NMC-Ru(SA+NC )affords a higher mass activity and a lower cost for generating H-2 than those of commercial Pt/C, justifiably proving its remarkable advantages for industrial use. This work offers precise guidance to design catalysts for high-throughput H(2 )production from the in-depth understanding of the electronic coupling effect of coupling active sites.

Key words

Ru single atoms/Ultrafine nanoclusters/Strong electronic coupling effect/Hydrogen evolution reaction/Economical catalyst

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量47

参考文献量55

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