Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices
Oh, Taegon
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https://hdl.handle.net/2142/44180
Description
Title
Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices
Author(s)
Oh, Taegon
Issue Date
2013-05-24T21:53:31Z
Director of Research (if dissertation) or Advisor (if thesis)
Eden, James G.
Department of Study
Materials Science & Engineerng
Discipline
Materials Science & Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Microplasma
Dissociation
carbon dioxide (CO2)
Laboratory for Optical Physics and Engineering
Abstract
Plasma discharge of carbon dioxide at atmospheric pressure was successfully demonstrated in microchannel plasma devices at breakdown voltages lower than 1 kVRMS. Optical emissions of molecular and ionic fragments of carbon dioxide were observed in emission spectra of visible wavelength range measured through a transparent dielectric coated with ITO electrode. Quantitative analysis by mass spectrometry derived the conversion rate of 2.40 ± 0.1 % and the energy efficiency of ~15 %. These results can be improved by modifying the device structures which leads to higher power loading and device packing density.
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