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Heteroatom-doped porous carbon has attracted many researchers’ interests owing to their hierarchical porous and more active sites for nitrogen reduction reaction (NRR). However, the development of simple synthesis strategies to fabricate efficient catalyst is still remaining a challenge. In this work, a series of N, P co-doped porous carbon were prepared by one-step pyrolysis of zeolitic imidazolate framework (ZIF-8) and triphenylphosphine (TPP) under nitrogen atmosphere. The obtained catalyst by calcinating ZIF-8 and TPP with the mass ratio of 1: 5 for three hours was named as PN-C-ZIF-8, which exhibited a high yield rate of ammonia (43.39 μg·h–1·mg–1cat.) and Faraday efficiency (16.67%) in 0.05 M H2SO4 at –0.3 V. More importantly, the PN-C-ZIF-8 catalyst had superior selectivity that no hydrazine by-products were detected and long-term durability for 72 h. This study provides an idea for the convenient design and preparation of heteroatom doped carbon materials.

Publication history
Copyright
Acknowledgements

Publication history

Received: 23 April 2021
Revised: 22 June 2021
Accepted: 23 June 2021
Published: 19 August 2021
Issue date: March 2022

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Acknowledgements

The authors acknowledge the financial support of National Natural Science Foundation of China (Nos. 22078215 and 21671147), Natural Science Foundation of Shanxi Province (No. 201901D211117), Research Project by Shanxi Scholarship Council of China (2021-055).

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