Molten salt-assisted synthesis of bulk CoOOH as a water oxidation catalyst

作     者：Sanzhao Song Hongliang Bao Xiao Lin Xian-Long Du Jing Zhou Linjuan Zhang Ning Chen Jun Hu Jian-Qiang Wang Sanzhao Song;Hongliang Bao;Xiao Lin;Xian-Long Du;Jing Zhou;Linjuan Zhang;Ning Chen;Jun Hu;Jian-Qiang Wang

作者机构：Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China University of Chinese Academy of SciencesBeijing 100049China Canadian Light SourceUniversity of SaskatchewanSaskatoon S7N 2V3Canada 

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

年 卷 期：2020年第29卷第3期

页      面：5-10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：This work was supported by“Transformational Technologies for Clean Energy and Demonstration” Strategic Priority Research Program of the Chinese Academy of Sciences(Grant no.XDA21080200) 

主　　题：Molten-salt-assisted synthesis CoOOH Crystallinity Water oxidation catalyst 

摘      要：Different sizes of layered CoOOH were synthesized by the molten-salt-assisted method at different temperatures.X-ray diffraction and scanning electron microscope studies reveal that CoOOH grew at(003)with increasing temperature,and its size can reach dozens of microns.X-ray absorption near edge structure and XPS studies demonstrate that the Co valence state of CoOOH-750 is trivalent,and X-ray Absorption Fine Structure shows that it had a higher symmetry and lower disorder degree,indicating that CoOOH-750 has higher crystallinity and Co3+.The results of electrochemical tests show that CoOOH-750 exhibited the best oxygen-evolution-reaction(OER)catalytic activity.