IMR OpenIR
Ultrathin alpha-Mo2C dominated by (100) Surface/Cu Schottky junction as efficient catalyst for hydrogen evolution
Yin, Yichun; Xu, Chuan; Liu, Zhibo; Ren, Wencai; Sun, Chenghua
2019-01-08
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume44Issue:2Pages:853-859
AbstractHigh-performance catalysts for hydrogen evolution reaction (HER) have been targeted for decades, ideally based on earth-abundant elements to replace expensive platinum. Several promising candidates have been reported, but catalysts with excellent conductivity, outstanding HER thermodynamics, kinetics and long durability are still extensively searched. In this work, we investigated the HER performance of micrometer-sized ultrathin alpha-Mo2C nanosheets dominated by minority surface (100) grown on copper foil by chemical vapor deposition (CVD). Such alpha-Mo2C/Cu Schottky junction electrode offers excellent durability and conductivity, together with small HER overpotential and ultralow Tafel slope (33.7 mV.dec(-1)), making it comparable to Pt/C catalyst. First principal calculations revealed the reaction path of hydrogen evolution over (100) surface, and clarified that the electron injection from the Cu substrate plays the key role for the observed performance. (C) 2018 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
KeywordHydrogen evolution alpha-Mo2C DFT
Indexed BySCI
Language英语
WOS IDWOS:000456355600031
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81467
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Yin, Yichun,Xu, Chuan,Liu, Zhibo,et al. Ultrathin alpha-Mo2C dominated by (100) Surface/Cu Schottky junction as efficient catalyst for hydrogen evolution[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2019,44(2):853-859.
APA Yin, Yichun,Xu, Chuan,Liu, Zhibo,Ren, Wencai,&Sun, Chenghua.(2019).Ultrathin alpha-Mo2C dominated by (100) Surface/Cu Schottky junction as efficient catalyst for hydrogen evolution.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,44(2),853-859.
MLA Yin, Yichun,et al."Ultrathin alpha-Mo2C dominated by (100) Surface/Cu Schottky junction as efficient catalyst for hydrogen evolution".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 44.2(2019):853-859.
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