Cobalt-iron oxide/black phosphorus nanosheet heterostructure:Electrosynthesis and performance of(photo-)electrocatalytic oxygen evolution

作     者：Man Zhao Xiaoru Cheng He Xiao Jianru Gao Shoufeng Xue Xiaoxia Wang Haishun Wu Jianfeng Jia Nianjun Yang Man Zhao;Xiaoru Cheng;He Xiao;Jianru Gao;Shoufeng Xue;Xiaoxia Wang;Haishun Wu;Jianfeng Jia;Nianjun Yang

作者机构：Key Laboratory of Magnetic Molecules&Magnetic Information Materials Ministry of EducationThe School of Chemical and Material ScienceShanxi Normal UniversityTaiyuan 030000China Institute of Materials EngineeringUniversity of SiegenSiegen 57076Germany 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第5期

页      面：6057-6066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 National Natural Science Foundation of China(No.21571119) the Applied Basic Research Project of Shanxi Province(Nos.201901D211393 and 201901D211398) Scientific and Technological Innovation Programs of Higher Education Institution in Shanxi(No.2019L0466) the Graduate Education Innovation Project of Shanxi Province(No.2021Y480) the Graduate Education Innovation Project of Shanxi Normal University(No.2021XSY038) 1331 Engineering of Shanxi Province 

主　　题：electrosynthesis oxygen evolution reaction black phosphorus cobalt oxide iron oxide 

摘      要：Highly active,stable,and cut-price(photo-)electrocatalysts are desired to overwhelm high energy barriers for anodic oxygen evolution reaction ***,a heterostructure of cobalt-iron oxide/black phosphorus nanosheets is in-situ synthesized via a facile and novel three-electrode electrolysis *** black phosphorus is exfoliated into its nanosheets at the cathode while the CoFe oxide is derived directly from the metal wire anode during the electrolysis *** heterostructure exhibits excellent electrocatalytic oxygen evolution reaction(OER)performance,and the overpotential at 10 mA·cm^(−2)is 51 mV lower than that of the commercial RuO_(2)*** superior OER performance stems from the favorable adsorption behavior and an enlarged electrochemical active surface area of the *** reveal the origin of excellent OER performance from the point of adsorption strength of OH*,methanol oxidation reaction(MOR)test is applied under the identified OER operating *** introduction of light illumination enhances the OER activity of this *** overpotential drops down to 280 mV,benefiting from pronounced photochemical response of black phosphorus nanosheets and iron oxide inside the *** work develops a new electrochemical method to construct high performance and light-sensitive heterostructures from black phosphorus nanosheets for the OER.