High-performance NH3 production via NO electroreduction over a NiO nanosheet array

Pengyu Liu; Jie Liang; Jiaqian Wang; Longcheng Zhang; Jun Li; Luchao Yue; Yuchun Ren; Tingshuai Li; Yonglan Luo; Na Li; Bo Tang; Qian Liu; Abdullah M Asiri; Qingquan Kong; Xuping Sun

doi:10.1039/d1cc06113e

High-performance NH₃ production via NO electroreduction over a NiO nanosheet array

Chem Commun (Camb). 2021 Dec 14;57(99):13562-13565. doi: 10.1039/d1cc06113e.

Authors

Pengyu Liu^{1

2}, Jie Liang², Jiaqian Wang², Longcheng Zhang², Jun Li², Luchao Yue², Yuchun Ren², Tingshuai Li², Yonglan Luo³, Na Li¹, Bo Tang¹, Qian Liu³, Abdullah M Asiri⁴, Qingquan Kong³, Xuping Sun^{1

2}

Affiliations

¹ College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China. luoylcwnu@hotmail.com.
² Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
³ Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China. liuqian@cdu.edu.cn.
⁴ Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.

PMID: 34842863
DOI: 10.1039/d1cc06113e

Abstract

Electrocatalytic NO reduction controls NO emission and produces NH₃ under ambient conditions. Herein, a NiO nanosheet array on titanium mesh is proposed as a highly active and selective electrocatalyst for NO reduction, attaining a faradaic efficiency of up to 90% with a NH₃ yield of 2130 μg h^-1 cm^-2. Its aqueous Zn-NO battery can generate electricity with a power density of 0.88 mW cm^-2 and simultaneously offer an NH₃ yield of 228 μg h^-1 cm^-2. The NO electroreduction mechanism on NiO is revealed using theoretical calculations.