Surface reconstruction,doping and vacancy engineering to improve the overall water splitting of CoP nanoarrays

作     者：Yongkai Sun Wenyuan Sun Lihong Chen Alan Meng Guicun Li Lei Wang Jianfeng Huang Aili Song Zhenhui Zhang Zhenjiang Li Yongkai Sun;Wenyuan Sun;Lihong Chen;Alan Meng;Guicun Li;Lei Wang;Jianfeng Huang;Aili Song;Zhenhui Zhang;Zhenjiang Li

作者机构：College of Electromechanical EngineeringQingdao University of Science and TechnologyQingdao 266061China College of Materials Science and EngineeringQingdao University of Science and TechnologyQingdao 266042China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOECollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China School of Material Science and EngineeringInternational S&T Cooperation Foundation of Shaanxi ProvinceXi’an Key Laboratory of Green Manufacture of Ceramic MaterialsShaanxi University of Science and TechnologyXi’an 710021China Qingdao Huanghai UniversityQingdao 266000China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第1期

页      面：228-238页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：The work reported here was supported by the National Natural Science Foundation of China(Nos.52072196,52002199,52002200,and 52102106) Major Basic Research Program of Natural Science Foundation of Shandong Province(No.ZR2020ZD09) the Natural Science Foundation of Shandong Province(Nos.ZR2019BEM042 and ZR2020QE063) the Innovation and Technology Program of Shandong Province(No.2020KJA004) the Taishan Scholars Program of Shandong Province(No.ts201511034) 

主　　题：fluorination surface reconstruction F atom doping P vacancies overall water splitting 

摘      要：Development of a general regulatory strategy for efficient overall water splitting remains a challenging ***,a simple,costfairness,and general fluorination strategy is developed to realize surface reconstruction,heteroatom doping,and vacancies engineering over cobalt phosphide(CoP)for acquiring high-performance bifunctional ***,the surface of CoP nanoarrays(NAs)becomes rougher,meanwhile F doped into CoP lattice and creating amounts of P vacancies by fluorination,which caused the increase of active sites and regulation of charge distribution,resulting the excellent electrocatalyst performance of F-CoP NAs/copper foam(CF).The optimized F-CoP NAs/CF delivers a lower overpotential of only 35 mV at 10 mA·cm^(−2)for hydrogen evolution reaction(HER)and 231 mV at 50 mA·cm^(−2)for oxygen evolution reaction(OER),and the corresponding overall water splitting requires only 1.48 V cell voltage at 10 mA·cm^(−2),which are superior to the most state-of-theart reported *** work provides an innovative and feasible strategy to construct efficient electrocatalysts.