Highly efficient mixed-metal spinel cobaltite electrocatalysts for the oxygen evolution reaction

作     者：Leiming Tao Penghu Guo Weiling Zhu Tianle Li Xiantai Zhou Yongqing Fu Changlin Yu Hongbing Ji 陶磊明;郭鹏虎;朱伟玲;李天乐;周贤太;傅永庆;余长林;纪红兵

作者机构：School of ScienceGuangdong University of Petrochemical TechnologyMaoming 525000GuangdongChina Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074HubeiChina Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon TyneNE18STUK Fine Chemical Industry Research InstituteSchool of ChemistrySun Yat‐sen UniversityGuangzhou 510275GuangdongChina 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2020年第41卷第12期

页      面：1855-1863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：国家自然科学基金(21938001,21576302,21878344和201961160741) 国家自然科学基金委-中国石化股份公司石油化工联合基金(U1663220) 广东省重点研发计划(2019B110206002) 广东省教育厅特色创新项目(2018KTSCX144,2016KTSCX087) 广东珠江人才计划地方创新研究团队项目(2017BT01C102) 广东省高校珠江学者计划(2019) 广东普通高校重点项目<自然>(2019KZDXM010) 广东省基础与应用基础研究基金(2019A1515011249) 广东石油化工学院自然科学基金科研基金(2019rc019,2019rc053) 英国工程与物理科学研究委员会(EPSRC)提供资助(EP/P018998/1) 英国皇家学会和中国国家自然科学基金委员会的牛顿交流基金(IE161019) 

主　　题：Cation-substituted spinel cobaltites Crystal field Oxygen evolution reaction Water-splitting Electrocatalysis 

摘      要：Cation substitution in spinel cobaltites(e.g.,ACo2O4,in which A=Mn,Fe,Co,Ni,Cu,or Zn)is a promising strategy to precisely modulate their electronic structure/properties and thus improve the corresponding electrochemical performance for water ***,the fundamental principles and mechanisms are not fully *** research aims to systematically investigate the effects of cation substitution in spinel cobaltites derived from mixed-metal-organic frameworks on the oxygen evolution reaction(OER).Among the obtained ACo2O4 catalysts,FeCo2O4 showed excellent OER performance with a current density of 10 mA·cm^-2 at an overpotential of 164 mV in alkaline *** theoretical calculations and experimental results demonstrate that the Fe substitution in the crystal lattice of ACo2O4 can significantly accelerate charge transfer,thereby achieving enhanced electrochemical *** crystal field of spinel ACo2O4,which determines the valence states of cations A,is identified as the key factor to dictate the OER performance of these spinel cobaltites.