期刊
ACS APPLIED ENERGY MATERIALS
卷 4, 期 11, 页码 13191-13198出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c02800
关键词
polyoxometalate; crystalline polymer; reduced graphene oxide; electrocatalyst; hydrogen evolution reaction
资金
- Major Research Plan National Natural Science Foundation of China [92061102]
- National Science Foundation of China [2171059]
- National Science Foundation of Heilongjiang Province [LH2019B009]
- Fundamental Research Foundation for Universities of Heilongjiang Province [LGYC2018JQ007]
In this study, a polyoxometalate-based crystalline polymer was used to prepare Ni-Mo-S-rGO-200-24-2 composite, which showed excellent HER activity and stability in KOH electrolyte. The synergistic effects among Ni3S2, MoS2, and rGO contributed to the enhanced electrocatalytic performance.
Efficient hydrogen evolution reaction (HER) is a promising approach for large-scale hydrogen production. Nevertheless, exploring a nonprecious, ecofriendly, and high-activity electrocatalyst for the HER in alkaline media is still a challenging endeavor. In this work, a polyoxometalate (POM)-based crystalline polymer, {(trz)(3)Ni-2 center dot 6H(2)O}[H3GeMo12O40]center dot 9H(2)O (trz = 1,2,4-triazole), is prefabricated, and then it is converted to Ni-Mo-S-rGO-200-24-2 composite under additional thiourea and graphene oxide (GO) by a hydrothermal method for the first time. Our work proves that it is feasible to take advantage of the synergistic effects among Ni3S2, MoS2, and reduced graphene oxide (rGO) to enhance the electrocatalytic HER activity and durability in KOH electrolyte. Namely, Ni-Mo-S-rGO-200-24-2 shows a low overpotential of 118 mV@10 mA.cm(-2) vs the reversible hydrogen electrode (RHE) and remains stable for 20 h. Judging from the overall catalytic performance, we can conclude that Ni-Mo-S-rGO-200-24-2 electrocatalyst is one of the best non-noble HER catalysts reported to date.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据