Progress in selective electrochemical reduction of nitrate into ammonia

Bibliographic Details
Title: Progress in selective electrochemical reduction of nitrate into ammonia
Authors: LI Zhizhuo, YAO Fubing, WU Xing, GAO Tianyu, SONG Zhenhui, CHAI Xilin, TANG Chongjian
Source: 能源环境保护, Vol 37, Iss 4, Pp 56-67 (2023)
Publisher Information: Editorial Office of Energy Environmental Protection, 2023.
Publication Year: 2023
Collection: LCC:Renewable energy sources
LCC:Environmental protection
Subject Terms: electrochemical reduction, nitrate wastewater, nitrate reduction, selective reduction, ammonia recovery, Renewable energy sources, TJ807-830, Environmental protection, TD169-171.8
More Details: Selective electrochemical reduction of nitrate (NO3-) into ammonia (NH_3) is critical for environmental remediation and resource recovery. This review comprehensively summarizes the recent advances in electrochemical conversion of NO3- into NH_3. Mechanisms of NO3- reduction are discussed. The conversion of NO3- into NO_2 and formation of N—H is the key for achieving high selectivity of NH3. The technologies and strategies for enhancing the performance of electrode are summarized and compared. The crystal structure, morphology and charge density of materials are the key factors affecting the properties of electrode materials. The influence of electrochemical reactor on NO3- conversion and NH_3 formation is described. The core of electrolytic cell is to avoid anode interference and in-situ realize NH_3 separation and recovery. With these facts, it is proposed that the strategies for NO3- electrochemical selective reduction synthesis of NH_3 are the development of low-cost, stable, and efficient electrode materials and electrochemical synthesis and in-situ separation of NH_3 reactor. Besides, the long-term large-scale research on the electrochemical synthesis of NH_3 from actual NO3- wastewater is critical for promoting the industrialization of this technology.
Document Type: article
File Description: electronic resource
Language: Chinese
ISSN: 2097-4183
Relation: https://eep1987.com/en/article/4519; https://doaj.org/toc/2097-4183
DOI: 10.20078/j.eep.20230601
Access URL: https://doaj.org/article/2e7d0e47db694a9fa1e07d3e1a3c49d9
Accession Number: edsdoj.2e7d0e47db694a9fa1e07d3e1a3c49d9
Database: Directory of Open Access Journals
More Details
ISSN:20974183
DOI:10.20078/j.eep.20230601
Published in:能源环境保护
Language:Chinese