Anion-cation dual doping: An effective electronic modulation strategy of Ni2P for high-performance oxygen evolution

• 作者: Bo Xu Cuncheng Li Linbing Du Qiang Fang Qingquan Lin Qisheng Liu Xiaodong Yang Yah Fu Yiqiang Sun
• 来源期刊: 能源化学
• 年，卷（期）: 2020,（9）
• 页码范围: 116-121
• 页数: 6页
• 语种: 英文

摘要

Developing of high-performance and low-cost electrocatalysts is of great significance to reduce the overpotential and accelerated the reaction rate of oxygen evolution in water splitting and related energy conversion applications.Herein,Fe,O-dual doped Ni2P (Fe,O-Ni2P) nanoarray is successfully synthesized on carbon cloth demonstrating enhanced electmcatalytic activity and stability for oxygen evolution reaction (OER) under alkaline media.The as-synthesized Fe,O-Ni2P nanoarray exhibits obviously improved OER performance with a low overpotential of 210 mV at 10 mA cm-2 current density and a Tafel slope of 48 mV dec-1,as well as long-term durability.The strong coupling interaction induced changes in electronic structure lead to relatively higher oxidation state and stronger oxidation ability of the Fe,O-Ni2P nanoarray,together with the high electrochemical surface area and good conductivity contribute to the superior OER performance.This work highlights the anion-cation dual doping strategy may be an effective method for fabrication of catalysts relating to energy conversion applications.