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Co-engineering of Fe-Mn nanoclusters with porous carbon for enhanced electrocatalytic ammonia synthesis
Youqing Wang1, Lang Zhang1, Caiyun Wang2
1MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004 Guangxi, China. fyh0811@gxu.edu.cn.
Abstract:
Electrochemical nitrate reduction (NO3-RR) to produce ammonia (NH3) is a promising strategy for treating nitrate contaminants but is limited by poor electrocatalyst activity and sustainability. Here, a nanocluster oxide iron-manganese loaded on nitrogen/oxygen-doped porous carbon catalyst is developed, achieving an NH3 yield rate of 359.87 μmol h-1 cm-2 and a high faradaic efficiency of 87.73%. Furthermore, the Zn-NO3- battery with NC-Fe1Mn2/NOPC as the cathode exhibits a high peak power density of 0.31 mW cm-2 and a NH3 yield of 25.79 μmol h-1 cm-2.
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