CoS2-incorporated WS2 nanosheets for efficient hydrogen production

被引：27

作者：

Cai, Mingyong ^{[1
]}

Han, Jinpeng ^{[1
]}

Lin, Yi ^{[1
]}

Liu, Weijian ^{[1
]}

Luo, Xiao ^{[1
]}

Zhang, Hongjun ^{[1
]}

Zhong, Minlin ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Laser Mat Proc Res Ctr, Beijing 100084, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2018年 / 287卷

基金：

中国国家自然科学基金;

关键词：

Hydrogen evolution reaction; WS2; nanosheets; Edge-oriented; CoS2-incorporated; Self-standing; EVOLUTION REACTION; CATALYTIC-ACTIVITY; MOS2; COS2; ELECTROCATALYSTS; PERFORMANCE; DISULFIDE; SYNERGY; FILMS;

D O I：

10.1016/j.electacta.2018.08.003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The exploration of low-cost and earth-abundant electrocatalysts is crucial to pave the way for hydrogen production through electrocatalytic water splitting. Herein, a 3D self-standing and hierarchical composite with WS2 nanosheets dotted by CoS2 nanoparticles is successfully synthesized via the rational structural designing and CoS2-incorporating. Edge-oriented WS2 nanosheets anchored on laser-textured microcone arrays constitute an open and porous framework for highly exposing active edge sites. Meanwhile, CoS2 nanoparticles are embedded in WS2 nanosheets to form a strong electronic interaction between them for the synergistic enhancement effect. Thus, the hybrid catalyst exhibits a high hydrogen evolution activity with a low overpotential and small Tafel slope. This study opens up a new pathway to improve electrocatalytic performance via a rational structural design and hybrid incorporation. (C) 2018 Published by Elsevier Ltd.

引用

页码：1 / 9

页数：9

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