In-situ surface self-reconstruction in ternary transition metal dichalcogenide nanorod arrays enables efficient electrocatalytic oxygen evolution

作     者：Qiang Chen Yulu Fu Jialun Jin Wenjie Zang Xiong Liu Xiangyong Zhang Wenzhong Huang Zongkui Kou John Wang Liang Zhou Liqiang Mai Qiang Chen;Yulu Fu;Jialun Jin;Wenjie Zang;Xiong Liu;Xiangyong Zhang;Wenzhong Huang;Zongkui Kou;John Wang;Liang Zhou;Liqiang Mai

作者机构：State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070HubeiChina Department of Materials Science and EngineeringNational University of SingaporeSingapore 117574Singapore Foshan Xianhu LaboratoryFoshan 528216GuangdongChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第4期

页      面：10-16页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the financial support from the National Natural Science Foundation of China(21673171) the kind support for the academic research by the Ministry of Education Singapore(Tier 1,R284-000-193-114)for research conducted in the National University of Singapore.Q.C.thanks support from the China Scholarship Council(CSC) 

主　　题：Surface self-reconstruction Transition metal dichalcogenide Transition metal oxyhydroxide Oxygen evolution reaction Water splitting 

摘      要：Water splitting has received more and more attention because of its huge potential to generate clean and renewable *** highly active and durable oxygen evolution reaction(OER)catalysts play a decisive factor in achieving efficient water *** identification of authentic active origin under the service conditions can prompt a more reasonable design of catalysts together with well-confined micro-/nano-structures to boost the efficiency of water ***,Fe,Co,and Ni ternary transition metal dichalcogenide(FCND)nanorod arrays on Ni foam are purposely designed as an active and stable low-cost OER pre-catalyst for the electrolysis of water in alkaline *** optimized FCND catalyst demonstrated a lower overpotential than the binary and unary counterparts,and a 27-fold rise in kinetic current density at the overpotential of 300 m V compared to the nickel dichalcogenide *** spectra and other structural characterizations at different potentials reveal that the in-situ surface self-reconstruction from FCND to ternary transition metal oxyhydroxides(FCNOH)on catalyst surfaces initiated at about 1.5 V,which is identified as the origin of OER *** surface selfreconstruction towards FCNOH also enables excellent stability,without fading upon the test for 50 h.