Plasma in situ gas-liquid nitrogen fixation using concentrated high-intensity electric field

Peng Peng, Charles Schiappacasse, Nan Zhou, Min Addy, Yanling Cheng, Yaning Zhang, Erik Anderson, Dongjie Chen, Yunpu Wang, Yuhuan Liu, Paul Chen, Roger Ruan

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


The environmental issues associated with the Haber-Bosch industry urges research on alternative nitrogen fixation processes. The efficiency of the plasma-based nitrogen fixation process could be greatly enhanced by eliminating hydrogen from the reactant stream and directly fixing nitrogen into the water-based solution. In this study, we present a novel non-thermal plasma gas-liquid nitrogen fixation process that generates plasma in situ within the liquid body using concentrated high-intensity electric field (CHIEF). The CHIEF system also avoided discharge at the electrode, which could help reduce electrode corrosion. The effects of input power and conductivity on discharge performance and nitrogen product composition were analyzed. The CHIEF system achieved a fixation rate as high as 11.2 µmol min-1. This system improved the selectivity towards nitrate compared with plasma generation at the water surface.

Original languageEnglish (US)
Article number494001
JournalJournal of Physics D: Applied Physics
Issue number49
StatePublished - Sep 18 2019

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© 2019 IOP Publishing Ltd.


  • concentrated electric field
  • gas-liquid synthesis
  • nitrogen fixation
  • non-thermal plasma


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