University of Leicester
Browse
bao-et-al-2023-carbon-and-oxygen-doped-phosphorus-nitride-%28copn%29-for-continuous-selective-and-stable-h2o2-production-2.pdf (8.32 MB)

Carbon and Oxygen-Doped Phosphorus Nitride (COPN) for Continuous Selective and Stable H2O2 Production

Download (8.32 MB)
journal contribution
posted on 2024-02-27, 14:20 authored by Zhikang Bao, Qun Cao, Yizhen Shao, Shijie Zhang, Xiaoge Peng, Yuanan Li, Chenghang Jiang, Xing Zhong, Jianguo Wang
Carbon and oxygen-doped phosphorus nitride (COPN) materials were synthesized via a template-assisted chemical vapor deposition (CVD)-like method. The COPN catalysts exhibited remarkable 2e- oxygen reduction reaction selectivity for H2O2 production across various pH environments, with COPN-3 displaying the highest selectivity up to 93.2%. Through optimization under continuous flow conditions using a flow cell, COPN-3 achieved a cumulative H2O2 concentration of up to 8 wt % with a remarkable Faraday efficiency of 99% and production rates of 17,670 mmol h-1 gcatalyst-1 (basic electrolyte) and 25,758 mmol h-1 gcatalyst-1 (neutral electrolyte). The catalyst maintained stable H2O2 production during a 70 h chronoamperometry, demonstrating its viability for practical electrocatalytic H2O2 production. Furthermore, a proof concept for utilizing the H2O2 generated under continuous flow conditions was demonstrated through an in situ oxidative degradation of various organic dyes. These results highlighted the promising electrocatalytic properties of COPN for practical H2O2 production and its versatility in practical applications.

Funding

The National Key Research and Development Program of China (No. 2021YFA1500900)

National Natural Science Foundation of China (NSFC-U21A20298 and 22141001)

History

Citation

ACS Catal. 2023, 13, 22, 14492–14502

Author affiliation

Chemistry

Version

  • VoR (Version of Record)

Published in

ACS Catalysis

Volume

13

Issue

22

Pagination

14492 - 14502

Publisher

American Chemical Society (ACS)

issn

2155-5435

eissn

2155-5435

Acceptance date

2023-10-16

Copyright date

2023

Available date

2024-02-27

Language

en

Deposited by

Mr Qun Cao

Deposit date

2024-02-22

Data Access Statement

The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acscatal.3c03775.

Rights Retention Statement

  • No

Usage metrics

    University of Leicester Publications

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC