globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2020.06.036
论文题名:
Conversion of bimetallic MOF to Ru-doped Cu electrocatalysts for efficient hydrogen evolution in alkaline media
作者: Yang M.; Jiao L.; Dong H.; Zhou L.; Teng C.; Yan D.; Ye T.-N.; Chen X.; Liu Y.; Jiang H.-L.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期:3
起始页码: 257
结束页码: 264
语种: 英语
中文关键词: Alkaline media ; Hydrogen adsorption energy ; Hydrogen evolution reaction ; Metal–organic framework ; Ru-doped Cu nanoparticles
英文关键词: Design for testability ; Electrocatalysts ; Electrolytes ; Gas adsorption ; Hydrogen evolution reaction ; Metal nanoparticles ; Porous materials ; Alkaline electrolytes ; Alkaline media ; Cu nano-particles ; Cu nanocrystals ; Hydrogen adsorption ; Hydrogen evolution ; Rational design ; Water splitting ; Density functional theory
英文摘要: The rational design and construction of inexpensive and highly active electrocatalysts for hydrogen evolution reaction (HER) is of great importance for water splitting. Herein, we develop a facile approach for preparation of porous carbon-confined Ru-doped Cu nanoparticles (denoted as Ru-Cu@C) by direct pyrolysis of the Ru-exchanged Cu-BTC metal–organic framework. When served as the electrocatalyst for HER, strikingly, the obtained Ru-Cu@C catalyst exhibits an ultralow overpotential (only 20 mV at 10 mA cm−2) with a small Tafel slope of 37 mV dec−1 in alkaline electrolyte. The excellent performance is comparable or even superior to that of commercial Pt/C catalyst. Density functional theory (DFT) calculations confirm that introducing Ru atoms into Cu nanocrystals can significantly alter the desorption of H2 to achieve a close-to-zero hydrogen adsorption energy and thereby boost the HER process. This strategy gives a fresh impetus to explore low-cost and high-performance catalysts for HER in alkaline media. © 2020 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170471
Appears in Collections:气候变化与战略

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作者单位: Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China; Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China; School of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu, 215500, China; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China; School of Civil and Architectural Engineering, Zhejiang University, Hangzhou, 310058, China; Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama, 226-8503, Japan; Center of Electron Microscopy and School of Material Science and Engineering, Zhejiang University, Hangzhou, 310027, China

Recommended Citation:
Yang M.,Jiao L.,Dong H.,et al. Conversion of bimetallic MOF to Ru-doped Cu electrocatalysts for efficient hydrogen evolution in alkaline media[J]. Science Bulletin,2021-01-01,66(3)
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