Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (12): 1860-1866.DOI: 10.1016/S1872-2067(19)63306-1

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Controlled synthesis of hexagonal annular Mn(OH)F for water oxidation

Yan Zhanga, Yingdong Chena, Zuozhong Lianga, Jing Qia, Xueqing Gaoa, Wei Zhanga, Rui Caoa,b   

  1. a Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, China;
    b Department of Chemistry, Renmin University of China, Beijing 100872, China
  • Received:2019-01-31 Revised:2019-02-16 Online:2019-12-18 Published:2019-09-21
  • Supported by:
    This work was supported by the "Thousand Talents Program" of China, the Starting Research Funds of Shaanxi Normal University, and the National Natural Science Foundation of China (21503126, 21573139, 21773146, 21872092).

Abstract: Controlling the morphology and size of materials is very important for their chemical and physical properties. Herein, we synthesized a novel hexagonal annular Mn(OH)F by a simple hydrothermal method. We also investigated the growth process of the materials from hexagonal block to hexagonal ring via controlling the hydrothermal temperature and time. Comparing with the hexagonal block, the hexagonal rings showed enhanced electrocatalytic water oxidation performance in alkaline solutions. The observed catalytic performance of this novel Mn(OH)F is correlated to its unique structure. Furthermore, we expect that Mn(OH)F would be a new type of Mn-based water oxidation catalyst.

Key words: Water oxidation, Electrocatalysis, Mn (OH) F, Hexagonal annular material, Oxygen evolution reaction