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

Chem Commun (Camb). 2022 Apr 5;58(28):4480-4483. doi: 10.1039/d2cc00189f.

Authors

Jun Li¹, Donglin Zhao², Longcheng Zhang¹, Luchao Yue¹, Yongsong Luo¹, Qian Liu³, Na Li⁴, Abdulmohsen Ali Alshehri⁵, Mohamed S Hamdy⁶, Quan Li², Xuping Sun^{1

4}

Affiliations

¹ Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China. xpsun@uestc.edu.cn.
² College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China. liquan6688@163.com.
³ Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China.
⁴ College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China.
⁵ Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
⁶ Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P. O. Box 9004, 61413 Abha, Saudi Arabia.

PMID: 35299236
DOI: 10.1039/d2cc00189f

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.