A FeCo2O4 nanowire array enabled electrochemical nitrate conversion to ammonia

Jun Li; Donglin Zhao; Longcheng Zhang; Luchao Yue; Yongsong Luo; Qian Liu; Na Li; Abdulmohsen Ali Alshehri; Mohamed S. Hamdy; Quan Li; Xuping Sun

doi:10.1039/D2CC00189F

A FeCo₂O₄ nanowire array enabled electrochemical nitrate conversion to ammonia†

Jun Li,‡^a Donglin Zhao,‡^b Longcheng Zhang,

^a Luchao Yue,^a Yongsong Luo,^a Qian Liu,^c Na Li,

^d Abdulmohsen Ali Alshehri,^e Mohamed S. Hamdy,^f Quan Li*^b and Xuping Sun

*^ad

Author affiliations

* Corresponding authors

^a Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China
E-mail: xpsun@uestc.edu.cn

^b College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China
E-mail: liquan6688@163.com

^c Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China

^d College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China

^e Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia

^f Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P. O. Box 9004, 61413 Abha, Saudi Arabia

Abstract

Electrocatalytic nitrate (NO₃⁻) reduction not only generates high-value ammonia (NH₃) but holds significant potential in the control of NO₃⁻ contaminants in natural environments. Here, a bimetallic FeCo₂O₄ spinel nanowire array grown on carbon cloth is proposed as an efficient electrocatalyst for the conversion of NO₃⁻ to NH₃ with a high faradaic efficiency of up to 95.9% and a large NH₃ yield of 4988 μg h⁻¹ cm⁻². Furthermore, it also exhibits excellent stability during 16 h electrolysis.

This article is part of the themed collection: Nanoscale Horizons, Nanoscale, and ChemComm: Nanocatalysis

Chemical Communications

A FeCo₂O₄ nanowire array enabled electrochemical nitrate conversion to ammonia†

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A FeCo₂O₄ nanowire array enabled electrochemical nitrate conversion to ammonia

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