Progress in selective electrochemical reduction of nitrate into ammonia

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 conve...

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Main Authors: LI Zhizhuo, YAO Fubing, WU Xing, GAO Tianyu, SONG Zhenhui, CHAI Xilin, TANG Chongjian*
Format: Article
Language:zho
Published: Editorial Office of Energy Environmental Protection 2023-08-01
Series:能源环境保护
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Online Access:https://eep1987.com/en/article/4519
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author LI Zhizhuo
YAO Fubing
WU Xing
GAO Tianyu
SONG Zhenhui
CHAI Xilin
TANG Chongjian*
author_facet LI Zhizhuo
YAO Fubing
WU Xing
GAO Tianyu
SONG Zhenhui
CHAI Xilin
TANG Chongjian*
author_sort LI Zhizhuo
collection DOAJ
description 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.
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id doaj-art-2e7d0e47db694a9fa1e07d3e1a3c49d9
institution Kabale University
issn 2097-4183
language zho
publishDate 2023-08-01
publisher Editorial Office of Energy Environmental Protection
record_format Article
series 能源环境保护
spelling doaj-art-2e7d0e47db694a9fa1e07d3e1a3c49d92024-11-13T12:02:04ZzhoEditorial Office of Energy Environmental Protection能源环境保护2097-41832023-08-01374566710.20078/j.eep.20230601Progress in selective electrochemical reduction of nitrate into ammoniaLI Zhizhuo0YAO Fubing1WU Xing2GAO Tianyu3SONG Zhenhui4CHAI Xilin5TANG Chongjian*6School of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversitySchool of Metallurgy and Environment, Central South UniversityJiangxi Gaiya Environmental Protection Technology CompanySchool of Metallurgy and Environment, Central South UniversitySelective 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.https://eep1987.com/en/article/4519electrochemical reductionnitrate wastewaternitrate reductionselective reductionammonia recovery
spellingShingle LI Zhizhuo
YAO Fubing
WU Xing
GAO Tianyu
SONG Zhenhui
CHAI Xilin
TANG Chongjian*
Progress in selective electrochemical reduction of nitrate into ammonia
能源环境保护
electrochemical reduction
nitrate wastewater
nitrate reduction
selective reduction
ammonia recovery
title Progress in selective electrochemical reduction of nitrate into ammonia
title_full Progress in selective electrochemical reduction of nitrate into ammonia
title_fullStr Progress in selective electrochemical reduction of nitrate into ammonia
title_full_unstemmed Progress in selective electrochemical reduction of nitrate into ammonia
title_short Progress in selective electrochemical reduction of nitrate into ammonia
title_sort progress in selective electrochemical reduction of nitrate into ammonia
topic electrochemical reduction
nitrate wastewater
nitrate reduction
selective reduction
ammonia recovery
url https://eep1987.com/en/article/4519
work_keys_str_mv AT lizhizhuo progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT yaofubing progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT wuxing progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT gaotianyu progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT songzhenhui progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT chaixilin progressinselectiveelectrochemicalreductionofnitrateintoammonia
AT tangchongjian progressinselectiveelectrochemicalreductionofnitrateintoammonia