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Updated: Jul 8, 2026
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
Oxygen vacancy-regulated nanorod array electrodes for boosting the electrocatalytic synthesis of ammonia from nitrate
Ziyi Yang1, Yudong Li2, Dan Liu2
1School of Chemical Engineering, Hebei University of Technology, Tianjin, 300400, China. yzhe87@163.com.
Abstract:
The adsorption of nitrate is the key to enhancing the electrocatalytic nitrate reduction reaction (NitRR). Herein, a typical hydrolysis-coupled redox (HCR) reaction has been designed to prepare unique 3D Cu/Fe2O3 core-shell nanorod array cathodes with controllable oxygen vacancy concentrations for NitRR. The optimal Cu/Fe2O3-13 achieves a high nitrate conversion of 99.10% and ammonia selectivity of 98.30%. The outstanding electrochemical performance is attributed to the enhancement mechanism of OVs and a unique nanorod array structure with a high density of surface-exposed OVs and high-throughput transport pathways for ion-aspects.
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