Pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy for activating water and urea oxidation  

作　　者：Guangfu Qian Wei Chen Jinli Chen Li Yong Gan Tianqi Yu Miaojing Pan Xiaoyan Zhuo Shibin Yin 

机构地区：[1]Guangxi Key Laboratory of Electrochemical Energy Materials,College of Chemistry and Chemical Engineering,State Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials,Guangxi University,100 Daxue Road,Nanning,530004,China [2]Institute for Structure and Function and Department of Physics,Chongqing University,Chongqing,400030,China

出　　处：《Green Energy & Environment》2024年第4期684-694,共11页绿色能源与环境（英文版）

基　　金：supported by the National Natural Science Foundation of China(21872040,22162004);the Excellent Scholars and Innovation Team of Guangxi Universities,the Innovation Project of Guangxi Graduate Education(YCBZ2022038);the High-performance Computing Platform of Guangxi University.

摘　　要：Exploitation of oxygen evolution reaction(OER)and urea oxidation reaction(UOR)catalysts with high activity and stability at large current density is a major challenge for energy-saving H_(2) production in water electrolysis.Herein,we use the pyridinic-N doping carbon layers coupled with tensile strain of FeNi alloy activated by NiFe_(2)O_(4)(FeNi/NiFe_(2)O_(4)@NC)for efficiently increasing the performance of water and urea oxidation.Due to the tensile strain effect on FeNi/NiFe_(2)O_(4)@NC,it provides a favorable modulation on the electronic properties of the active center,thus enabling amazing OER(η_(100)=196 mV)and UOR(E_(10)=1.32 V)intrinsic activity.Besides,the carbon-coated layers can be used as armor to prevent FeNi alloy from being corroded by the electrolyte for enhancing the OER/UOR stability at large current density,showing high industrial practicability.This work thus provides a simple way to prepare high-efficiency catalyst for activating water and urea oxidation.

关 键 词：Carbon-encapsulated Tensile strain Catalyst Oxygen evolution reaction Urea oxidation reaction 

分 类 号：TQ116.1[化学工程—无机化工] TQ426