Ambient Electroreduction of Nitrite to Ammonia over Ni Nanoparticle Supported on Molasses-Derived Carbon Sheets

Electrochemical nitrite (NO2 –) reduction is a promising approach for ambient ammonia (NH3) synthesis and simultaneous mitigation of NO2 – contaminant in wastewater. Herein, we report Ni nanoparticle supported on molasses-derived carbon sheets (Ni@MDC) as an earth-abundant electrocatalyst for NO2 –-...

Full description

Saved in:
Bibliographic Details
Published in:ACS applied nano materials 2022-10, Vol.5 (10), p.14246-14250
Main Authors: He, Xun, Li, Xiuhong, Fan, Xiaoya, Li, Jun, Zhao, Donglin, Zhang, Longcheng, Sun, Shengjun, Luo, Yongsong, Zheng, Dongdong, Xie, Lisi, Asiri, Abdullah M., Liu, Qian, Sun, Xuping
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Electrochemical nitrite (NO2 –) reduction is a promising approach for ambient ammonia (NH3) synthesis and simultaneous mitigation of NO2 – contaminant in wastewater. Herein, we report Ni nanoparticle supported on molasses-derived carbon sheets (Ni@MDC) as an earth-abundant electrocatalyst for NO2 –-to-NH3 conversion. When tested in alkaline solutions with 0.1 M NO2 –, such Ni@MDC obtains a high NH3 yield of 6.3 mg h–1 mgcat –1 with a Faradaic efficiency of 65.4% at −0.8 V versus reversible hydrogen electrode under ambient conditions. Furthermore, it shows remarkable electrochemical stability during long-term electrolysis and cycling tests.
ISSN:2574-0970
2574-0970
DOI:10.1021/acsanm.2c03720