期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 2, 页码 2437-2445出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.8b05315
关键词
Interface engineering; Crystalline/amorphous Co2P/CoMoPx; One-step electrodeposition; Electrocatalysis; Hydrogen evolution reaction
资金
- National Natural Science Foundation of China [51103120]
Exploring highly active and stable non-noble metal -based electrocatalysts is of great significance for the wide application of hydrogen evolution reaction (HER) in alkaline media. Herein, we report that crystalline/amorphous Co2P/CoMoPx nanoparticles containing many active interfaces supported on nickel foam (NF) are highly efficient electrocatalysts for alkaline HER. The interface-engineered crystalline/amorphous Co2P/CoMoPx nanostructure is achieved by simple one-step electrodeposition method under a controllable constant current. The optimal electrocatalyst Co2P/CoMoPx-0.4/NF in this work exhibits superior activity for the alkaline HER with low overpotentials of -121 mV at 100 mA.cm(-2) and prominent electrochemical stability for 50 h. Excellent HER performance can be attributed to a large amount of active interfaces formed between crystalline Co2P and amorphous CoMoPx which provide effective exposure of highly active sites and promote electron transfer. This work may open up a new way for the design and preparation of earth abundant, low-cost nanostructured materials as high-efficiency HER electrocatalysts for applications in the field of electrocatalysis.
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