Constructing built-in electric field via CuO/NiO heterojunction for electrocatalytic reduction of nitrate at low concentrations to ammonia

• Published in: Chinese chemical letters Vol. 35; no. 12; pp. 109789 - 326
• Main Authors: Chen, Ying, Xia, Xingyuan, Tian, Lei, Yin, Mengying, Zheng, Ling-Ling, Fu, Qian, Wu, Daishe, Zou, Jian-Ping
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2024; Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,School of Resources & Environment,Nanchang University,Nanchang 330031,China; National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization,School of Environmental and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China%National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization,School of Environmental and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China%Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,School of Resources & Environment,Nanchang University,Nanchang 330031,China; School of Materials and Chemical Engineering,Pingxiang University,Pingxiang 337000,China
• Subjects: Built-in electric field; Electrocatalytic reduction of NO3; Low concentrations; NH4+ selectivity; H; Built-in electric field; Low concentrations; NH4+ selectivity; Electrocatalytic reduction of NO3; NH4+selectivity

Electrocatalytic reduction of nitrate (NO3−) at low concentrations to ammonia (NH4+) still faces challenges of low NO3− conversion and NH4+ selectivity due to the sluggish mass transfer and insufficient atomic hydrogen (H*) supply. Herein, we propose CuO/NiO heterojunction with the assistance of a b...