Nitrogen fixation as NOx using air plasma coupled with heterogeneous catalysis at atmospheric pressure

Xuekai Pei, Yiheng Li, Yi Luo, Chenxi Man, Yumin Zhang, Xinpei Lu, David B. Graves

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This study presents insights into the use of activated (Formula presented.) catalysts to improve the energy efficiency of (Formula presented.) production in atmospheric pressure air plasma. The introduction of catalysts in the direct current glow discharge system reduces the energy cost of (Formula presented.) production by up to 45% at low gas flow rates. Notably, even when positioned away from the plasma zone, the catalyst enhanced (Formula presented.) production, suggesting a significant role for the catalytic activation of downstream neutral species. The study also introduced a novel approach involving an air plasma jet infused with floating catalyst powder. This method significantly increased energy efficiency at higher discharge currents, with an associated energy cost of 2.9 MJ/mol for (Formula presented.) production.

Original languageEnglish (US)
Article number2300135
JournalPlasma Processes and Polymers
Volume21
Issue number1
DOIs
StatePublished - Jan 2024

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Polymers and Plastics

Keywords

  • NO production
  • atmospheric pressure air plasma
  • energy cost
  • floating catalyst
  • nitrogen fixation

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