Co0.85Se magnetic nanoparticles supported on carbon nanotubes as catalyst for hydrogen evolution reaction

被引：37
作者：
Sun, Xiaohui [1 ,2 ]
Habibul, Nuzahat [1 ,2 ]
Du, Hong [1 ,2 ]
机构：
[1] Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Xinjiang, Peoples R China
[2] Xinjiang Key Lab Energy Storage & Photocatalyt Mi, Urumqi 830054, Xinjiang, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2021年 / 42卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Co0.85Se; Nanocomposites; Magnetic; Electrocatalysis; Hydrogen evolution reaction; FREE COUNTER ELECTRODE; N-DOPED CARBON; HIGHLY EFFICIENT; COBALT SELENIDE; GRAPHENE OXIDE; NANOCRYSTALLINE CO0.85SE; STABLE ELECTROCATALYST; FACILE SYNTHESIS; ANODE MATERIAL; NANOSHEETS;
D O I：
10.1016/S1872-2067(20)63632-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Co0.85Se magnetic nanoparticles supported on carbon nanotubes were prepared by a one-step hydrothermal method. The saturation magnetization and coercivity of the MWCNTs/Co0.85Se nanocomposites increased due to a decrease in the Co0.85Se nanoparticle size in the MWCNTs/Co0.85Se nanocomposites and an increase in the distance between the Co0.85Se nanoparticles, which increased the specific surface area, thereby benefiting the electrocatalytic performance of the catalyst. Moreover, the MWCNTs/Co0.85Se nanocomposites exhibited an excellent hydrogen evolution reaction performance owing to the presence of MWCNTs, which enhanced the mass transport during the electrocatalytic reactions. Furthermore, in an acid solution, the 30 wt% MWCNTs/Co0.85Se composite catalyst exhibited a current density of 10 mA cm(-2) at a small overpotential of 266 mV vs. RHE, a small Tafel slope of 60.5 mV dec(-1), and good stability for HER. (C) 2021, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：235 / 243
页数：9
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