Chinese Journal of Catalysis ›› 2020, Vol. 41 ›› Issue (4): 574-591.DOI: 10.1016/S1872-2067(19)63458-3

• Special Column for the Youth Innovation Promotion Association, Chinese Academy of Sciences • Previous Articles     Next Articles

Layered transition-metal hydroxides for alkaline hydrogen evolution reaction

Qianfeng Liua,b, Erdong Wanga, Gongquan Suna   

  1. a Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-09-30 Revised:2019-10-22 Online:2020-04-18 Published:2019-12-12
  • Supported by:
    This work was supported by the National Key Research and Development Program (2017YFC0306403), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA09030104, XDA22010601) and the Youth Innovation Promotion Association of the Chinese Academy of Sciences.

Abstract: Hydrogen is a promising sustainable energy to replace fossil fuels owning to its high specific energy and environmental friendliness. Alkaline water electrolysis has been considered as one of the most prospective technologies for large scale hydrogen production. To boost the sluggish kinetics of hydrogen evolution reaction (HER) in alkaline media, abundant materials have been designed and fabricated. Herein, we summarize the key achievements in the development of layered transition-metal hydroxides[TM(OH)x] for efficient alkaline HER. Based on the structure of TM(OH)x, the mechanism of synergistic effect between TM(OH)x and HER active materials is illuminated firstly. Then, recent progress of TM(OH)x-based HER catalysts to optimize the synergistic effect are categorized as TM(OH)x and active materials, including species, structure, morphology and interaction relationship. Furthermore, TM(OH)x-based overall water splitting electrocatalysts and electrodes are summarized in the design principles for high activity and stability. Finally, some of key challenges for further developments and applications of hydrogen production are proposed.

 

Key words: Transition-metal hydroxides, Hydrogen evolution reaction, Water splitting, Electrocatalysis, Synergistic effect

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