通过共掺杂策略优化氮化物电极的反应路径以促进碱性析氢反应动力学

作     者：李双双 杜云梅 王萌萌 刘洁 李彬 顾元香 王磊 Shuangshuang Li;Yunmei Du;Mengmeng Wang;Jie Liu;Bin Li;Yuanxiang Gu;Lei Wang

作者机构：Shandong Engineering Research Center for Marine Environment Corrosion and Safety ProtectionCollege of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China College of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyKey Laboratory of Eco-chemical EngineeringKey Laboratory of Optic-electric Sensing and Analytical Chemistry of Life ScienceTaishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and TechnologyQingdao 266042China College of Materials Science and EngineeringQingdao University of Science and TechnologyQingdao 266042China 

出 版 物：《Science China Materials》 (中国科学（材料科学）（英文版）)

年 卷 期：2023年第66卷第12期

页      面：4639-4649页

核心收录：

学科分类：0808[工学-电气工程] 081704[工学-应用化学] 07[理学] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (52072197 and 21971132) the 111 Project of China (D20017) the Outstanding Youth Foundation of Shandong Province, China (ZR2019JQ14) the Natural Science Foundation of Shandong Province, China (ZR2022QE098) the Major Scientific and Technological Innovation Project (2019JZZY020405) the Major Basic Research Program of Natural Science Foundation of Shandong Province (ZR2020ZD09) the Postdoctoral Innovation Project of Shandong Province (SDCX-ZG-20220307) Qingdao Postdoctoral Researcher Applied Research Project (04030431060100) “Double-Hundred Talent Plan” of Shandong Province (WST2020003) 

主　　题：P,Ce-FeNi_(3)N/NF co-doping strategy reaction kinetics reaction pathway electrocatalysis hydrogen evolution reaction 

摘      要：通过优化氮化物的析氢反应(HER)途径来提高反应动力学是氮化物改性的重点.本工作创造性地采用P-阴离子和Ce-阳离子的共掺杂策略构建了P,Ce-FeNi_(3)N/NF电极.该P,Ce-FeNi_(3)N/NF电极在200 mV过电位下的电流密度(340 mA cm^(−2))是商业Pt/C@NF电流密度(174 mA cm^(−2))的两倍.理论计算表明,与FeNi_(3)N/NF的单个Ni活性位点不同,P,Ce-FeNi_(3)N/NF利用双活性位点(Ni和P)机制极大地优化了碱性HER过程中的反应动力学.此外,组装的NiFeCe-LDH/NF||P,Ce-FeNi_(3)N/NF电池仅需要1.537 V的电压即可实现500 mA cm^(−2)的高电流密度.这项工作从反应路径优化和反应动力学改进的角度为实现氮化物优异的电催化性能提供了一种新策略.