Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction

doi:10.1002/advs.202000216

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction
	Wang, R ; Han, JC ; Xu, P ; Gao, TL ; Zhong, J ; Wang, XJ ; Zhang, XH ; Li, ZJ ; Xu, LL ; Song, B
刊名	ADVANCED SCIENCE
	2020
卷号	7 期号:9 页码:-
关键词	CATALYTIC-ACTIVITY SULFUR VACANCIES MOS2 NANOSHEETS PHASE ELECTROCATALYSTS IDENTIFICATION GENERATION NANORODS SITES
ISSN号	2198-3844
DOI	10.1002/advs.202000216
文献子类	期刊论文
英文摘要	Rhenium dichalcogenides (ReX2, X = S or Se) are catalysts that have great promise for the photoenhanced hydrogen evolution reaction (PE-HER) because of their unique physiochemical properties. However, the catalytic performance is still restricted by their low concentration of electrocatalytic activity sites and poor injection of hot electrons. Herein, dual-enhancement in ReSe2 nanosheets (NSs) with high concentration of active sites and efficient use of hot electrons is simultaneously achieved with moderate Mo doping. Contributions from exposed catalytically active sites, improved electrical conductivity, and enhanced solar spectral response are systematically investigated. Superior PE-HER catalytical performance is obtained in Re0.94Mo0.06Se2, which has more catalytically active sites and optimized band structure than other Re1-xMoxSe2 samples. Here, it is demonstrated that only doping can reduce the overpotential (eta(10)) from 239 to 174 mV at -10 mA cm(-2) (Delta 1 eta(10) = 65 mV). Then, eta(10) is further improved to 137 mV under simulated AM 1.5 sun illumination (Delta 2 eta(10) = 37 mV). The total improvement (Delta eta(10)) toward PE-HER is 102 mV (Delta 1 eta(10) + Delta 2 eta(10) = 102 mV) in optimal Re0.94Mo0.06Se2. This work presents a new perspective for researching high-efficiency photoenhanced HER ReSe2-based electrocatalysts and other layered transition metal dichalcogenides.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32814]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China 2.Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150001, Peoples R China 3.Heilongjiang Acad Sci, Inst Petrochem, Harbin 150040, Peoples R China 4.Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China 5.Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China 6.Harbin Normal Univ, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Sch Phys & Elect Engn, Harbin 150025, Peoples R China 7.Soochow Univ, Inst Funct Nano & Soft Mat, Suzhou 215123, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wang, R,Han, JC,Xu, P,et al. Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction[J]. ADVANCED SCIENCE,2020,7(9):-.
APA	Wang, R.,Han, JC.,Xu, P.,Gao, TL.,Zhong, J.,...&Song, B.(2020).Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction.ADVANCED SCIENCE,7(9),-.
MLA	Wang, R,et al."Dual-Enhanced Doping in ReSe2 for Efficiently Photoenhanced Hydrogen Evolution Reaction".ADVANCED SCIENCE 7.9(2020):-.