Coupling interface constructions of FeOOH/NiCo_(2)S_(4)by microwave-assisted method for efficient oxygen evolution reaction

作     者：Ming-Liang Guo Zhi-Yu Wu Miao-Miao Zhang Zi-Jian Huang Ke-Xi Zhang Bing-Rong Wang Jin-Chun Tu Ming-Liang Guo;Zhi-Yu Wu;Miao-Miao Zhang;Zi-Jian Huang;Ke-Xi Zhang;Bing-Rong Wang;Jin-Chun Tu

作者机构：State Key Laboratory of Marine Resource Utilization in the South China SeaCollege of Materials Science and EngineeringHainan UniversityHaikou570228China School of ScienceHainan UniversityHaikou570228China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第6期

页      面：1847-1857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：financially supported by Hainan Province Clinical Medical Center,the National Natural Science Foundation of China (Nos.81860373,51862006,81902154 and 82060386) Hainan Province Science and Technology Special Fund (Nos.ZDKJ2021029 and ZDYF2021SHFZ068) 

主　　题：Transition metal sulfides FeOOH Interface structure Adsorption energy Oxygen evolution 

摘      要：The oxygen evolution reaction(OER) with slow kinetics is the rate-limiting step of electrochemical water splitting.A reasonable construction of interface nanostructures is the key to improving the OER efficiency and durability of non-noble metal *** this study,a FeOOH/NiCo_(2)S_(4) core-shell nanorod array with abundant heterogeneous interfaces and high density of active sites was successfully prepared by a microwave-as sis ted *** research and theoretical calculations show that the abundant strong coupling Ni/Co-S-Fe interface helps in adjusting the electronic structure of the material surface,optimizing the adsorption energy of the intermediate,and realizing an efficient catalytic *** as-synthesized FeOOH/NiCo_(2)S_(4)/NF composite electrode exhibited lower overpotential(198 mV) and Tafel slope(62 mV·dec^(-1)) at a current density of 10 mA·cm^(-2)and excellent stability(approximately 100% retention after100 h) than the NiCo_(2)S_(4)/nickel foam(NF).In conclusion,constructing heterojunctions with complementary active materials is an effective strategy to design efficient and robust OER electrocatalysts.