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Waste Disposal & Sustainable Energy
Waste Disposal & Sustainable Energy  2022, Vol. 4 Issue (2): 149-155    DOI: 10.1007/s42768-022-00095-2
    
Ar-plasma enhanced copper-nickel alloy catalysis for ammonia synthesis
Ar-plasma enhanced copper-nickel alloy catalysis for ammonia synthesis
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摘要： Ammonia (NH3) synthesis via electrocatalytic nitrogen reduction generally suffers from low NH3 yield and faradaic efficiency. Compared with activating stable, low-solubility N2, the electrochemical conversion of nitrates to ammonia provides a more reasonable route for NH3 production. Herein, we introduce Ar-plasma to enhance the interaction between copper-nickel alloys and carbon substrate to improve the performance of NH3 production. The NH3 faradaic efficiency from nitrate is nearly 100% and the yield rate is over 6000 μgNH3cm?2h?1. DFT (density functional theory) calculation reveals the high performance of Cu50Ni50 originates from the lower energy barrier on the reaction path and the closer position to the Fermi level of the d-band center. This work offers a promising strategy for plasma-modified electrocatalyst to promote ammonia synthesis via nitrate reduction.
Abstract: Ammonia (NH3) synthesis via electrocatalytic nitrogen reduction generally suffers from low NH3 yield and faradaic efficiency. Compared with activating stable, low-solubility N2, the electrochemical conversion of nitrates to ammonia provides a more reasonable route for NH3 production. Herein, we introduce Ar-plasma to enhance the interaction between copper-nickel alloys and carbon substrate to improve the performance of NH3 production. The NH3 faradaic efficiency from nitrate is nearly 100% and the yield rate is over 6000 μgNH3cm?2h?1. DFT (density functional theory) calculation reveals the high performance of Cu50Ni50 originates from the lower energy barrier on the reaction path and the closer position to the Fermi level of the d-band center. This work offers a promising strategy for plasma-modified electrocatalyst to promote ammonia synthesis via nitrate reduction.
出版日期: 2022-07-22
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Zhou YimengLv JiabaoLi Xiaodong

引用本文:

Zhou YimengLv JiabaoLi Xiaodong. Ar-plasma enhanced copper-nickel alloy catalysis for ammonia synthesis. Waste Disposal & Sustainable Energy, 2022, 4(2): 149-155.

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https://www.zjujournals.com/wdse/CN/10.1007/s42768-022-00095-2    或    https://www.zjujournals.com/wdse/CN/Y2022/V4/I2/149

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