Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (3): 437-450.doi: 10.1007/s40242-024-3278-3

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Recent Advances in 0D Ni/Co-based Hollow Electrocatalysts for Electrochemical Water Splitting

GE Wenjing, CHEN Xiaocui, MA Ruizhao, ZHENG Siyuan, SHANG Ningzhao, ZHAO Xiaoxian   

  1. Department of Chemistry, College of Science, Hebei Agricultural University, Baoding 071001, P. R. China
  • Received:2023-12-19 Online:2024-06-01 Published:2024-06-01
  • Contact: ZHAO Xiaoxian,E-mail:lxzhxx@hebau.edu.cn E-mail:lxzhxx@hebau.edu.cn
  • Supported by:
    This work was supported by the Talent Introduction Program of Hebei Agricultural University, China (No. YJ201810), the Youth Top-notch Talent Foundation of Hebei Provincial Universities, China (No. BJK2022023), the National Natural Science Foundation of China (NSFC) (No. 22105059), the Natural Science Foundation of Hebei Province, China (No. B2023204006), and the Talent Training Project of Hebei Province, China (No. A201901046).

Abstract: Electrochemical water splitting using renewable energy sources has been recognized as a sustainable way to produce hydrogen energy due to the characteristics of low-carbon and no pollution. However, the slow hydrogen/oxygen evolution reactions (HER/OER) seriously hinder the practical application of large-scale water splitting. In this paper, the 0D Ni/Co-based hollow material is discussed in detail because of adjustable morphology, low mass density and abundant active sites, which provides an effective solution for improving the HER/OER reaction kinetics. The synthesis methods of hollow materials, such as hard template, soft template and self-template are introduced. Afterward, catalysts with different structural designs of hollow structures are reviewed, including hollow single-shelled structure, hollow core-shelled structure, hollow double-shelled structure and hollow multi-shelled structure (HoMS) catalysts. Wherein, the research progress of the 0D Ni/Co-based HoMS electrocatalysts in recent years and their prominent performances in water splitting are highlighted. Finally, the challenges and development prospects of designing Ni/Co-based HoMS catalysts in water splitting in the future are discussed.

Key words: Electrochemical water splitting, Morphological regulation, Hollow structure, Hollow multi-shelled structure (HoMS)