Three-dimensional ZnCo/MoS2-Co3S4/NF heterostructure supported on nickel foam as highly efficient catalyst for hydrogen evolution reaction

被引：20

作者：

Jiang, Jibo ^{[1
]}

Cong, Haishan ^{[1
]}

Huang, Xing ^{[1
]}

Sun, Ran ^{[1
]}

Li, Yulu ^{[1
]}

Xu, Wenxiu ^{[1
]}

Wang, Heran ^{[1
]}

Han, Sheng ^{[1
]}

机构：

[1] Shanghai Inst Technol, Sch Chem & Environm Engn, Haiquan Rd 100, Shanghai 201418, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 05期

关键词：

Hydrogen evolution reaction; Multi-layer; Heterostructures; Electrocatalysts; TRANSITION-METAL DICHALCOGENIDES; LAYERED-DOUBLE-HYDROXIDES; HIGH-PERFORMANCE; MOS2; ELECTROCATALYSTS; NANOSTRUCTURES; POLYHEDRA; SULFIDES; SITES;

D O I：

10.1016/j.ijhydene.2021.10.217

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Exploring inexpensive and earth-abundant electrocatalysts for hydrogen evolution reactions is crucial in electrochemical sustainable chemistry field. In this work, a high efficiency and inexpensive non-noble metal catalysts as alternatives to hydrogen evolution reaction (HER) was designed by one-step hydrothermal and two-step electrodeposition method. The as-prepared catalyst is composed of the synergistic MoS2-Co3S4 layer decorated by ZnCo layered double hydroxides (ZnCo-LDH), which forms a multi-layer heterostructure (ZnCo/MoS2-Co3S4/NF). The synthesized ZnCo/MoS2-Co3S4/NF exhibits a small overpotential of 31 mV and a low Tafel plot of 53.13 mV dec(-1) at a current density of 10 mA cm(-2), which is close to the HER performance of the overpotential (26 mV) of Pt/C/NF. The synthesized ZnCo/MoS2-Co3S4/NF also has good stability in alkaline solution. The excellent electrochemical performance of ZnCo/MoS2-Co3S4/NF electrode originates from its abundant active sites and good electronic conductivity brought by the multilayer heterostructure. This work provides a simple and feasible way to design alkaline HER electrocatalysts by growing heterostructures on macroscopic substrates. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：2947 / 2957

页数：11

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