Yttrium‐and nitrogen‐doped NiCo phosphide nanosheets for high‐efficiency water electrolysis

作     者：Guangliang Chen Huiyang Xiang Yingchun Guo Jun Huang Wei Chen Zhuoyi Chen Tongtong Li Kostya(Ken)Ostrikov 

作者机构：Department of Materials EngineeringHuzhou UniversityHuzhouChina School of Materials Science and EngineeringZhejiang Sci‐Tech UniversityHangzhouChina School of Physics and Electronic InformationGannan Normal UniversityGanzhouChina School of Chemistry and PhysicsCentre for Materials ScienceCentre for Clean Energy Technologies and PracticesCentre for Waste−Free WorldQueensland University of Technology(QUT)BrisbaneQueenslandAustralia 

出 版 物：《Carbon Energy》 (碳能源（英文）)

年 卷 期：2024年第6卷第8期

页      面：214-231页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China,Grant/Award Number:52177162 the Natural Science Foundation of Zhejiang Province,Grant/Award Numbers:LZ22E070003,LQ22E020006 the Funding Project for Academic/Technical Leaders of Jiangxi Province,Grant/Award Number:20225BCJ22003 the Natural Science Foundation of Jiangxi Province,Grant/Award Number:20212ACB211001 

主　　题：overall water splitting plasma etching plasma N‐doping rare‐earth electrocatalyst yttrium incorporation 

摘      要：Engineering high‐performance and low‐cost bifunctional catalysts for H_(2)(hydrogen evolution reaction[HER])and O_(2)(oxygen evolution reaction[OER])evolution under industrial electrocatalytic conditions remains ***,for the first time,we use the stronger electronegativity of a rare‐Earth yttrium ion(Y^(3+))to induce in situ NiCo‐layered double‐hydroxide nanosheets from NiCo foam(NCF)treated by a dielectric barrier discharge plasma NCF(PNCF),and then obtain nitrogen‐doped YNiCo phosphide(N‐YNiCoP/PNCF)after the phosphating process using radiofrequency plasma in *** obtained NYNiCoP/PNCF has a large specific surface area,rich heterointerfaces,and an optimized electronic structure,inducing high electrocatalytic activity in HER(331mV vs.2000mA cm^(−2))and OER(464mV vs.2000mA cm^(−2))reactions in 1MKOH electrolyte.X‐ray absorption spectroscopy and density functional theory quantum chemistry calculations reveal that the coordination number of CoNi decreased with the incorporation of Y atoms,which induce much shorter bonds of Ni and Co ions and promote long‐term stability of N‐YNiCoP in HER and OER under the simulated industrial ***,the CoN‐YP_(5)heterointerface formed by plasma N‐doping is the active center for overall water *** work expands the applications of rare‐Earth elements in engineering bifunctional electrocatalysts and provides a new avenue for designing highperformance transition‐metal‐based catalysts in the renewable energy field.