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Electrochemical reduction of gaseous nitric oxide into ammonia: a review

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Abstract

Electrochemical reduction of gaseous nitric oxide gas is an appealing approach for simultaneously recycling nitric oxide and producing value-added ammonia. Indeed, ammonia finds applications in fertilizers production for agriculture, as a reagent in the pharmaceutical, explosive, and textile industries, and as a potential fuel for next-generation automotive fuel cells. Reduction of nitric oxide to ammonia using various electrode materials in electrochemical processes is reviewed. Materials primarily fall into two major categories: metal-based catalysts and carbon-supported catalysts. The key consideration and operational analysis to understand mechanistic reaction pathways and the selective production of product and intermediate are discussed from a prospective viewpoint.

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Acknowledgements

This research was supported by Korea Basic Science Institute (National research Facilities and Equipment Center) grant funded by the Ministry of Education. (Nos. 2019R1A6C1010042, 2021R1A6C103A427). The authors acknowledge the financial support from National Research Foundation of Korea (NRF), (2022R1A2C2010686, 2022R1A4A3033528, 2019H1D3A1A01071209, 2021R1I1A1A01060380). The author, Dr. Soorathep Kheawhom acknowledges The Program Management Unit for Human Resources & Industrial Development, Research & Innovation (B16F640166), and Dr. Arun Prasad Murthy acknowledges Department of Science and Technology, India (SERB No. CRG/2022/005972) for the financial support.

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Correspondence to Akram Alfantazi, Arun Prasad Murthy or Myong Yong Choi.

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Theerthagiri, J., Karuppasamy, K., Mahadi, A.H. et al. Electrochemical reduction of gaseous nitric oxide into ammonia: a review. Environ Chem Lett 22, 189–208 (2024). https://doi.org/10.1007/s10311-023-01655-6

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  • DOI: https://doi.org/10.1007/s10311-023-01655-6

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