Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (6): 1906-1917.doi: 10.19799/j.cnki.2095-4239.2021.0441

• Special issue of hydrogen energy and fuel cell • Previous Articles     Next Articles

Recent advances in transition metal-based catalysts for oxygen evolution reaction

Naijian SONG1(), Mingyuan GUO1, Haoxiong NAN2(), Jia YU3()   

  1. 1.School of Chemistry and Materials, Weinan Normal University, Weinan 714099, Shaanxi, China
    2.School of Science, Hainan University, Haikou 570228, Hainan, China
    3.Materials Genome Institute, Shanghai University, Shanghai 200444, China
  • Received:2021-07-31 Revised:2021-09-10 Online:2021-11-05 Published:2021-11-03

Abstract:

Oxygen evolution reaction (OER) is a limiting process in energy conversion and storage due to its sluggish kinetics, especially in water electrolysis. The critical challenge in this area is to explore alternative precious-metal-free catalysts to promote the OER process. Transition metal-based compounds have attracted much attention in electrochemical water splitting because of their unique chemical and physical properties, as well as low cost. In this review, we summarize the recent research status and progress of spinel, perovskite and layered double hydroxides as electrocatalysts for OER, which have been extensively studied in recent years. The researcher strategies developed to promote electrocatalytic activities and stability are described, along with the electrochemical properties of theses developed catalysts. Based on related references, we observed that there are generally two strategies to improve OER catalyst activities: (1) introduce more active sites and expose them to the catalyst surface and (2) optimize the conductivity of OER catalysts. These requirements can be met to some extent by the controlling size, morphology, intrinsic and lattice defects, oxygen vacancies, phase and composition of OER catalysts, and by the incorporation of conducting materials in composites. Finally, the future development of OER electrocatalysts is briefly discussed.

Key words: spinel, perovskite, layered double, oxygen evolution reaction

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