Facile synthesis of flower-like MoSxSe2-x nanocomposites for efficient hydrogen evolution

被引：1
作者：
Shi, Hai-yan [1 ]
Wang, Yi [2 ]
Wang, De-zhi [1 ]
机构：
[1] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[2] Hunan Univ Sci & Technol, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2023年 / 33卷 / 09期
关键词：
ternary MoSxSe2-x alloy; defect; synergistic effect; electrocatalyst; hydrogen evolution; ACTIVE EDGE SITES; MOSE2; NANOSHEETS; H-2; EVOLUTION; NANOSTRUCTURES; SE; 1T;
D O I：
10.1016/S1003-6326(23)66296-X
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
To solve the poor conductivity and limited active sites of MoSe2, ternary MoSxSe2-x nanosheets with defects were synthesized by a convenient hydrothermal process. The results showed that the introduction of S element not only improved the electron transfer ability, but also provided more electrocatalytic active sites. Consequently, the optimized MoSxSe2-x with a S/Se molar ratio of 1:1 (MoSSe) presented superior electrocatalytic hydrogen evolution reaction performance with a low Tafel slope of 47 mV/dec, and a small overpotential of -165 mV at -10 mA/cm(2) as well as good durability. This work provides an additional route for better understanding the modulation of multi-factors in designing and synthesizing MoSe2-based catalysts to improve their electrochemical activity.
引用
收藏
页码：2761 / 2771
页数：11
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