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The impact of nitrogen oxides on electrochemical carbon dioxide reduction

Author

Listed:
  • Byung Hee Ko

    (University of Delaware)

  • Bjorn Hasa

    (University of Delaware)

  • Haeun Shin

    (University of Delaware)

  • Emily Jeng

    (University of Delaware)

  • Sean Overa

    (University of Delaware)

  • Wilson Chen

    (University of Delaware)

  • Feng Jiao

    (University of Delaware)

Abstract

The electroreduction of carbon dioxide offers a promising avenue to produce valuable fuels and chemicals using greenhouse gas carbon dioxide as the carbon feedstock. Because industrial carbon dioxide point sources often contain numerous contaminants, such as nitrogen oxides, understanding the potential impact of contaminants on carbon dioxide electrolysis is crucial for practical applications. Herein, we investigate the impact of various nitrogen oxides, including nitric oxide, nitrogen dioxide, and nitrous oxide, on carbon dioxide electroreduction on three model electrocatalysts (i.e., copper, silver, and tin). We demonstrate that the presence of nitrogen oxides (up to 0.83%) in the carbon dioxide feed leads to a considerable Faradaic efficiency loss in carbon dioxide electroreduction, which is caused by the preferential electroreduction of nitrogen oxides over carbon dioxide. The primary products of nitrogen oxides electroreduction include nitrous oxide, nitrogen, hydroxylamine, and ammonia. Despite the loss in Faradaic efficiency, the electrocatalysts exhibit similar carbon dioxide reduction performances once a pure carbon dioxide feed is restored, indicating a negligible long-term impact of nitrogen oxides on the catalytic properties of the model catalysts.

Suggested Citation

  • Byung Hee Ko & Bjorn Hasa & Haeun Shin & Emily Jeng & Sean Overa & Wilson Chen & Feng Jiao, 2020. "The impact of nitrogen oxides on electrochemical carbon dioxide reduction," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19731-8
    DOI: 10.1038/s41467-020-19731-8
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    Cited by:

    1. Doris Segets & Corina Andronescu & Ulf-Peter Apfel, 2023. "Accelerating CO2 electrochemical conversion towards industrial implementation," Nature Communications, Nature, vol. 14(1), pages 1-5, December.
    2. Yurou Celine Xiao & Siyu Sonia Sun & Yong Zhao & Rui Kai Miao & Mengyang Fan & Geonhui Lee & Yuanjun Chen & Christine M. Gabardo & Yan Yu & Chenyue Qiu & Zunmin Guo & Xinyue Wang & Panagiotis Papangel, 2024. "Reactive capture of CO2 via amino acid," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Huan Li & Jun Long & Huijuan Jing & Jianping Xiao, 2023. "Steering from electrochemical denitrification to ammonia synthesis," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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