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ELECTRON DENSITY MODULATION OF NICO2S4 NANOWIRES BY NITROGEN INCORPORATION FOR HIGHLY EFFICIENT HYDROGEN EVOLUTION CATALYSIS

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成果类型:
期刊论文
作者:
Wu, Yishang;Liu, Xiaojing;Han, Dongdong;Song, Xianyin;Shi, Lei;...
通讯作者:
Xiao, Xiangheng;Zheng, Xusheng
作者机构:
[Wu, Shaoyang; Song, Yao; Cai, Jinyan; Wang, Gongming; Niu, Shuwen; Wu, Yishang; Xie, Yufang; Zhou, Jianbin; Shi, Lei; Liu, Xiaojing; Han, Dongdong; Kang, Jian] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China.
[Song, Yao; Wu, Yishang; Chen, Zhiyan] Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.
[Song, Xianyin; Xiao, Xiangheng] Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China.
[Zheng, Xusheng] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China.
通讯机构:
[Xiao, Xiangheng] W
[Zheng, Xusheng] U
Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China.
Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China.
语种:
英文
期刊:
Nature Communications
ISSN:
2041-1723
年:
2018
卷:
9
期:
1
页码:
1425
基金类别:
We thank the financial support of the Natural Science Fund of China (Nos. 21771169 and 11722543), USTC start-up funding, Recruitment Program of Global Expert, and the Fundamental Research Funds for the Central Universities (WK2060190074; WK2060190081). We also appreciate the Photoemission Endstations (BL10B) in National Synchrotron Radiation Laboratory (NSRL) for help in XANES and XAFS characterizations. The numerical calculations in this paper have been done on the supercomputing system in the Supercomputing Center of University of Science and Technology of China.
机构署名:
本校为其他机构
院系归属:
材料科学与工程学院
摘要:
Metal sulfides for hydrogen evolution catalysis typically suffer from unfavorable hydrogen desorption properties due to the strong interaction between the adsorbed H and the intensely electronegative sulfur. Here, we demonstrate a general strategy to improve the hydrogen evolution catalysis of metal sulfides by modulating the surface electron densities. The N modulated NiCo2S4 nanowire arrays exhibit an overpotential of 41 mV at 10 mA cm−2 and a Tafel slope of 37 mV dec−1, which are very close to the performance of the benchmark Pt/C in ...

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