IHEP OpenIR  > 北京同步辐射装置
In Situ Investigation on Doping Effect in Co-Doped Tungsten Diselenide Nanosheets for Hydrogen Evolution Reaction
BSRF用户
2021
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
EISSN1932-7455
Volume125Issue:11Pages:6229--6236
SubtypeArticle
AbstractElement doping strategy has been proven to be an efficient route to both activate the catalytic sites and optimize the electronic structure for transition metal dichalcogenides. However, the specific influence of element doping on the catalytic performance still remained obscure. Herein, we reveal the doping effect on the atomic and electronic structure of Se active sites during the electrocatalytic hydrogen evolution reaction (HER) through in situ X-ray adsorption spectroscopy. We reveal a dynamic structure evolution in Co-doped tungsten diselenide (Co-WSe2) nanosheets, which lead to the optimized electronic state of Se active sites and further promote H-2 production under HER. The theoretical calculations verified the rationality of the structural evolution and demonstrated the doping effect on the electronic structure of Se active sites, thus, resulting in a 140 mV decrease of overpotential at 10 mA/cm(2) for Co-WSe2 nanosheets. This work provides a new understanding of the element doping effect on enhancing electrochemical performance.
DOI10.1021/acs.jpcc.0c11552
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000635441700028
ItemNoBSRF00803
beamline1W1B
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/293571
Collection北京同步辐射装置
Recommended Citation
GB/T 7714
BSRF用户. In Situ Investigation on Doping Effect in Co-Doped Tungsten Diselenide Nanosheets for Hydrogen Evolution Reaction[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2021,125(11):6229--6236.
APA BSRF用户.(2021).In Situ Investigation on Doping Effect in Co-Doped Tungsten Diselenide Nanosheets for Hydrogen Evolution Reaction.JOURNAL OF PHYSICAL CHEMISTRY C,125(11),6229--6236.
MLA BSRF用户."In Situ Investigation on Doping Effect in Co-Doped Tungsten Diselenide Nanosheets for Hydrogen Evolution Reaction".JOURNAL OF PHYSICAL CHEMISTRY C 125.11(2021):6229--6236.
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