过电位
电催化剂
纳米材料
析氧
电化学
化学工程
材料科学
层状结构
催化作用
化学
纳米技术
电极
生物化学
冶金
物理化学
工程类
作者
Zhengfang Hou,Fangyuan Fan,Zhe Wang,Yuqing Deng,Yeshuang Du
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:52 (29): 10064-10070
被引量:5
摘要
Design and exploration of highly efficient oxygen evolution reaction (OER) electrocatalysts is an urgent task to realize the future ideals of the hydrogen economy. Non-precious metal-based nanomaterials have been widely developed as electrocatalysts to expedite reaction rate and solve the low efficiency problem of the OER. A novel nanocatalyst, NiSe-CoFe LDH, in which lamellar CoFe LDH covered the surface of NiSe, was fabricated through a simple chemical vapor deposition and hydrothermal method. The specific heterogeneous three-dimensional structure of NiSe-CoFe LDH showed impressive electrochemical performance towards the OER. When used as an OER electrocatalyst, the NiSe-CoFe LDH nanomaterial afforded an overpotential of 228 mV to attain 10 mA cm-2. Furthermore, NiSe-CoFe LDH also maintained excellent stability with negligible activity after chronopotentiometry measurement for 60 hours.
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