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MINI REVIEW article

Front. Chem.
Sec. Electrochemistry
Volume 12 - 2024 | doi: 10.3389/fchem.2024.1452689
This article is part of the Research Topic Defect Chemistry in Electrocatalysis - Volume II View all articles

From Defects to Catalysis: Mechanism and Optimization of NO Electroreduction Synthesis of NH3

Provisionally accepted
Linling Gan Linling Gan 1*Liao Zhen Liao Zhen 1*Huimei Zhang Huimei Zhang 1*Jinxia Jiang Jinxia Jiang 1*Zhikai Chen Zhikai Chen 2*
  • 1 Chongqing Medical and Pharmaceutical College, Chongqing, China
  • 2 School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China

The final, formatted version of the article will be published soon.

    Ammonia (NH₃) is a crucial industrial raw material, but the traditional Haber-Bosch process is energy-intensive and highly polluting. Electrochemical methods for synthesizing ammonia using nitric oxide (NO) as a precursor offer the advantages of operating under ambient conditions and achieving both NO reduction and resource utilization. Defect engineering enhances electrocatalytic performance by modulating electronic structures and coordination environments. In this brief review, the catalytic reaction mechanism of electrocatalytic NO reduction to NH3 is elucidated, with a focus on synthesis strategies involving vacancy defects and doping defects. From this perspective, the latest advances in various catalytic reduction systems for nitric oxide reduction reaction (NORR) are summarized and synthesized. Finally, the research prospects for NO reduction to NH₃ are discussed.

    Keywords: Defect engineering, nitric oxide reduction reaction, Vacancy defects, Doping defects, Electrocatalysis

    Received: 21 Jun 2024; Accepted: 29 Jul 2024.

    Copyright: © 2024 Gan, Zhen, Zhang, Jiang and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Linling Gan, Chongqing Medical and Pharmaceutical College, Chongqing, China
    Liao Zhen, Chongqing Medical and Pharmaceutical College, Chongqing, China
    Huimei Zhang, Chongqing Medical and Pharmaceutical College, Chongqing, China
    Jinxia Jiang, Chongqing Medical and Pharmaceutical College, Chongqing, China
    Zhikai Chen, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.