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

作　　者：Bo Xu Xiaodong Yang Qiang Fang Linbing Du Yan Fu Yiqiang Sun Qisheng Liu Qingquan Lin Cuncheng Li 

机构地区：[1]School of Chemistry and Chemical Engineering,University of Jinan,Jinan 250022,Shandong,China [2]Institute of Applied Catalysis,College of Chemistry and Chemical Engineering,Yantai University,Yantai 264005,Shandong,China

出　　处：《Journal of Energy Chemistry》2020年第9期116-121,I0004,共7页能源化学（英文版）

基　　金：financial support from the National Science Foundation of China(51671094,21606189);China Postdoctoral Science Foundation(2017M612174);Shandong Provincial Natural Science Foundation(ZR2015BQ011);the Science and Technology Project of University of Jinan(XKY1826)。

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 electrocatalytic 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 of48 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.

关 键 词：Oxygen evolution reaction Ni2P based electrocatalyst Anion-cation dual doping 

分 类 号：TQ116.2[化学工程—无机化工] TQ426