OH radical generation by atmospheric pressure plasma and its quantitative analysis by monitoring CO oxidation

Zhen Zhou Su, Kohei Ito, Hyun Ha Kim, Kazunori Takashima, Akira Mizuno

Research output: Contribution to journalArticle

Abstract

In the atmospheric chemistry, CO oxidation monitoring method has been used to measure OH radicals concentration. The application of CO oxidation monitoring method to the OH radicals measurements in a pulsed discharged plasma in argon and H2O mixture at 1 atm was studied. The influence of the loss reaction of OH radicals could be ignored when initial CO concentration was > 2000 ppm. However, when CO concentration exceeded 1%, the CO2 concentration began to decrease due to a decrease in the peak discharge current. Thus, the influence of loss reaction depended on the initial concentration of CO. Production of OH radicals increased when the H2O content increased under the same specific input energy (SIE). The production of OH radicals increased with the SIE value when the H2O content was kept constant. These results agreed with other measurement on spectroscopic analysis of OH formation in dielectric barrier discharges of Ar/O2/H2O.

Original languageEnglish
Pages (from-to)324-325
Number of pages2
JournalUnknown Journal
Volume47
Issue number1
Publication statusPublished - Mar 2002
Externally publishedYes

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quantitative analysis
atmospheric pressure
Atmospheric pressure
Atmospheric chemistry
Plasmas
plasma
oxidation
Oxidation
Spectroscopic analysis
Monitoring
monitoring
Chemical analysis
Argon
peak discharge
atmospheric chemistry
argon
energy
loss
method

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

OH radical generation by atmospheric pressure plasma and its quantitative analysis by monitoring CO oxidation. / Su, Zhen Zhou; Ito, Kohei; Kim, Hyun Ha; Takashima, Kazunori; Mizuno, Akira.

In: Unknown Journal, Vol. 47, No. 1, 03.2002, p. 324-325.

Research output: Contribution to journalArticle

Su, Zhen Zhou ; Ito, Kohei ; Kim, Hyun Ha ; Takashima, Kazunori ; Mizuno, Akira. / OH radical generation by atmospheric pressure plasma and its quantitative analysis by monitoring CO oxidation. In: Unknown Journal. 2002 ; Vol. 47, No. 1. pp. 324-325.
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