Absolute spatially and time-resolved O, O3, and air densities in the effluent of a modulated RF-driven atmospheric pressure plasma jet obtained by molecular beam mass spectrometry

Jingkai Jiang, Yuchen Luo, Ankit Moldgy, Yolanda Aranda Gonzalvo, Peter J. Bruggeman

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this paper, we report a molecular beam mass spectrometer study of a time-modulated radiofrequency (RF)-driven atmospheric pressure plasma jet in Ar + 1% O2. Time-resolved measurements of the absolute density of O3 during the RF modulation period revealed a temporal increase of O3 densities at the start and end of the power modulation. This increase correlates with the increase in O2 due to plasma-induced transient vortices in the gas jet. Pseudo-one-dimensional plug flow modeling of the axial species densities as a function of distance match well with the experimentally recorded trends. The obtained results were used to assess the importance of the O flux in previously reported ClO production in saline by the same plasma jet.

Original languageEnglish (US)
Article number1900163
JournalPlasma Processes and Polymers
Volume17
Issue number6
DOIs
StatePublished - Jun 1 2020

Bibliographical note

Funding Information:
The authors sincerely thank Prof. M. Kushner (University of Michigan) for providing the GlobalKin code and advice. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota in providing resources that contributed to the results reported in this paper. This study was supported by the National Science Foundation (CBET 1703439) and the US Department of Energy, Office of Fusion Energy Sciences (DESC0001939).

Funding Information:
The authors sincerely thank Prof. M. Kushner (University of Michigan) for providing the GlobalKin code and advice. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota in providing resources that contributed to the results reported in this paper. This study was supported by the National Science Foundation (CBET 1703439) and the US Department of Energy, Office of Fusion Energy Sciences (DESC0001939).

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • absolute density
  • atomic oxygen
  • molecular beam mass spectrometer
  • ozone
  • plug flow model

Fingerprint Dive into the research topics of 'Absolute spatially and time-resolved O, O<sub>3</sub>, and air densities in the effluent of a modulated RF-driven atmospheric pressure plasma jet obtained by molecular beam mass spectrometry'. Together they form a unique fingerprint.

Cite this