Amorphous NiCoB-coupled MAPbI3 for efficient photocatalytic hydrogen evolution

Lanxuan Jiang; Yanmei Guo; Shaopeng Qi; Ke Zhang; Jinxi Chen; Yongbing Lou; Yixin Zhao

doi:10.1039/D1DT03633E

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Amorphous NiCoB-coupled MAPbI₃ for efficient photocatalytic hydrogen evolution†

Lanxuan Jiang,^a Yanmei Guo,^a Shaopeng Qi,^a Ke Zhang,^a Jinxi Chen,

^a Yongbing Lou

*^a and Yixin Zhao

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Southeast University, Nanjing, P.R. China
E-mail: lou@seu.edu.cn

^b School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China

Abstract

It was thought that the organic–inorganic hybrid perovskite MAPbI₃ could be used to collect visible light for the photocatalytic hydrogen evolution reaction (HER). However, its ability to generate H₂ is limited. Herein, we synthesized amorphous NiCoB through a redox method and coupled it with MAPbI₃ to form the NiCoB/MAPbI₃ composite photocatalyst by electrostatic self-assembly. 30% NiCoB/MAPbI₃ exhibited the maximum H₂ generation yield of 2625.57 μmol g⁻¹ h⁻¹, which was approximately 114 fold that of pristine MAPbI₃ and much better than that of Pt/MAPbI₃. In addition to the excellent photocatalytic HER capability, NiCoB/MAPbI₃ maintained good stability in the 24 h cycling hydrogen evolution experiment. The photoelectric analysis showed that NiCoB as a cocatalyst could realize rapid charge separation. This work can offer a reference for the construction of efficient photocatalysts based on lead halide perovskites.

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Article information

DOI: https://doi.org/10.1039/D1DT03633E
Article type: Paper
Submitted: 27 Oct 2021
Accepted: 21 Nov 2021
First published: 22 Nov 2021

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Dalton Trans., 2021,50, 17960-17966

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Amorphous NiCoB-coupled MAPbI₃ for efficient photocatalytic hydrogen evolution

L. Jiang, Y. Guo, S. Qi, K. Zhang, J. Chen, Y. Lou and Y. Zhao, Dalton Trans., 2021, 50, 17960 DOI: 10.1039/D1DT03633E

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Dalton Transactions