过电位
析氧
纳米结构
材料科学
催化作用
电化学
过渡金属
纳米纤维
化学工程
电催化剂
循环伏安法
纳米技术
化学
电极
物理化学
有机化学
工程类
作者
Bin Yang,Xin Chang,Xinyao Ding,Xinzhi Ma,Mingyi Zhang
标识
DOI:10.1016/j.jcis.2022.05.039
摘要
Nickel-based transition metal phosphides have been widely flourishing as oxygen evolution reaction (OER) electrocatalysts. In this study, a new catalyst Ni2P/Mn2O3 nanofibers with the advantages of ultra-high electrochemical active area were successfully synthesized. We explored effective strategies that are constructing one-dimensional nanostructures and composite oxides to promote the electrocatalytic performance of transition metal phosphides. The Ni2P/Mn2O3 nanofibers only require a low overpotential of 280 mV to deliver a current density of 10 mA cm-2 in 1 M KOH for oxygen production. As a result, it is worthily mentioned that the activity of Ni2P/Mn2O3 nanofibers is virtually unchanged after 2000 cycles of voltammetry measurements with a stable nanostructure. This research provides a feasible solution for the design and realization of nanostructured electrocatalysts for the enhancing performance of the OER process.
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