Chinese Journal of Catalysis ›› 2021, Vol. 42 ›› Issue (8): 1379-1386.DOI: 10.1016/S1872-2067(20)63601-4

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In situ synthesis of a nickel boron oxide/graphdiyne hybrid for enhanced photo/electrocatalytic H2 evolution

Xue-Peng Yin, Shu-Wen Luo, Shang-Feng Tang, Xiu-Li Lu*, Tong-Bu Lu#   

  1. MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Material Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
  • Received:2020-01-06 Accepted:2020-01-06 Online:2021-08-18 Published:2020-11-23
  • Contact: Xiu-Li Lu,Tong-Bu Lu
  • About author:#E-mail: lutongbu@tjut.edu.cn
    *. Tel/Fax: +86-22-60215704; E-mail: luxiuli@email.tjut.edu.cn
    First author contact:

    These authors contributed equally to this work

  • Supported by:
    This work was supported by the Science and Technology Development Fund of Tianjin Education Commission for Higher Education(2018KJ129)

Abstract:

Developing highly active catalysts for photo/electrocatalytic water splitting is an attractive strategy to produce H2 as a renewable energy source. In this study, a new nickel boron oxide/graphdiyne (NiBi/GDY) hybrid catalyst was prepared by a facile synthetic approach. Benefitting from the strong electron donating ability of graphdiyne, NiBi/GDY showed an optimized electronic structure containing lower valence nickel atoms and demonstrated improved catalytic performance. As expected, NiBi/GDY displayed a high photocatalytic H2 evolution rate of 4.54 mmol g ‒1 h ‒1, 2.9 and 4.5 times higher than those of NiBi/graphene and NiBi, respectively. NiBi/GDY also displayed outstanding electrocatalytic H2 evolution activity in 1.0 M KOH solution, with a current density of 400 mA/cm 2 at an overpotential of 478.0 mV, which is lower than that of commercial Pt/C (505.3 mV@400 mA/cm 2). This work demonstrates that GDY is an ideal support for the development of highly active catalysts for photo/electrocatalytic H2 evolution.

Key words: Graphdiyne, Hybrid material, Photo/electrocatalyst, Water splitting reaction, H2 evolution