塔菲尔方程
析氧
分解水
材料科学
电化学
电解质
兴奋剂
热液循环
化学工程
纳米技术
贵金属
光电子学
金属
催化作用
电极
化学
物理化学
冶金
光催化
工程类
生物化学
作者
Haibin Ma,Changning Sun,Zhili Wang,Qing Jiang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2021-01-01
卷期号:13 (40): 17022-17027
被引量:9
摘要
It is of great importance to develop efficient and low-cost oxygen evolution reaction (OER) electrocatalysts for electrochemical water splitting. Herein, S doped NiCoVOx nanosheets grown on Ni-Foam (S-NiCoVOx/NF) with a modified electronic structure have been prepared through a facile one-step hydrothermal method. The as-prepared S4.06-NiCoVOx/NF exhibits outstanding OER activity with low overpotentials of 248 mV and 289 mV to deliver current densities of 10 mA cm-2 and 100 mA cm-2, respectively, and a small Tafel slope of 46.2 mV dec-1 in 1.0 M KOH electrolyte. These values are much lower than those obtained for most of the recently reported non-noble metal-based electrocatalysts under similar experimental conditions. This study provides a simple approach to rational design of efficient and cost-effective OER electrocatalysts for practical application of electrochemical water splitting.
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