Atomic-layered Pt clusters on S-vacancy rich MoS2-x with high electrocatalytic hydrogen evolution

被引：18
作者：
Shi, Feng [1 ,2 ]
Wu, Wenzhuo [1 ,2 ]
Chen, Jiafu [1 ]
Xu, Qun [1 ,2 ]
机构：
[1] Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450052, Peoples R China
[2] Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450052, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2021年 / 57卷 / 57期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
ACTIVE EDGE SITES; GRAPHENE; WATER; MOC;
D O I：
10.1039/d1cc02304g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Developing suitable supports to maximize the atomic utilization efficiency of platinum group metals is of great significance to hydrogen evolution from water splitting. Herein, we report a fully exposed Pt cluster supported on an S-vacancy rich MoS2-x support (Pt/Sv-MoS2-x) by a facile impregnation method. Pt/Sv-MoS2-x exhibits an outstanding electrochemical HER performance with a low overpotential of 26.6 mV at a current density of 10 mA cm(-2), a small Tafel slope of 34.8 mV dec(-1) and good durability. Most importantly, the mass activity of Pt is an order of magnitude more active than that of commercial Pt/C at an overpotential of 0.08 V. We attribute this exceptional HER catalytic performance to the fact that platinum and Sv-MoS2-x act in synergy to accelerate the reaction kinetics.
引用
收藏
页码：7011 / 7014
页数：4
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