第 53 卷第 2 期 Vol. 53 No. 2 2023 年 4 月 Apr 2023

所属栏目：功能材料 NiMoO4形貌可控调变及对Ni-MoS2电催化水制氢影响研究

黄金午，白 亮，王 莉，曹 兢* （湖南理工学院 化学化工学院，湖南 岳阳 414006）

摘　要：采用水热法，制备了NiMoO4纳米棒和纳米球前体，并考察了前体形貌对硫化态Ni-MoS2催化剂电催化分解水制氢性能的影响。结果表明，使用NiMoO4纳米球前体所得Ni-MoS2催化剂在电流密度为10 mA/cm2的过电位为217 mV，比使用NiMoO4纳米棒前体所得Ni-MoS2催化剂的过电位低60 mV。表征结果表明，NiMoO4纳米球前体硫化所得的Ni-MoS2催化剂具有更加规整的形貌和更高的硫化程度，从而具有更多的四价钼活性位点。

关键词：电催化析氢；二硫化钼；镍掺杂；形貌可控

中图分类号：O643　　文献标识码：A　　文章编号：1009-9212（2023）02-0058-06

Controlled Morphology Modulation of NiMoO4 and its Effect on the Performance of Ni-MoS2 in Electrochemical Hydrogen Evolution

HUANG Jin-wu, BAI Liang, WANG Li, CAO Jing* (Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China)

Abstract：The NiMoO4 nanorod and nanosphere were prepared by hydrothermal method as precursors. Besides, the effect of morphology of the precursors on the performance of Ni-MoS2 in electrocatalytic hydrogen evolution was investigated. The results show that the overpotential of Ni-MoS2 catalyst with NiMoO4 nanosphere as precursor is 217 mV at a current density of 10 mA/cm2, which is 60 mV lower than that with NiMoO4 nanorod as precursor. The characterization results showed that the Ni-MoS2 catalyst obtained from NiMoO4 nanosphere precursor had more regular morphology and higher sulfidation degree, thus exposing more active molybdenum (IV) sites.

Key words：electrochemical hydrogen evolution; MoS2; Ni doping; morphology control

基金项目：湖南省大学生创新训练项目（S202210543036）。

作者简介：黄金午（2002—），男，湖南张家界人，研究方向：电催化分解水制氢（E-mail：hnistHjw@163.com）。

联 系 人：曹 兢，讲师，硕士生导师，研究方向：电催化，催化加氢（E-mail：caojing@hnist.edu.cn）。

收稿日期：2023-01-30