Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
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Optical Emission and Mass Spectra Observations during Hydrogen Combustion in Atmospheric Pressure Microwave Plasma
Naomichi EZUMIKazuhiko AKAHANEKeiji SAWADAYasunori TANAKAMasahiro TANAKATatsuhiko UDAKiyohiko NISHIMURA
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2012 Volume 7 Pages 2401075


We experimentally investigated hydrogen combustion by atmospheric pressure plasma generated by a 2.45 GHz microwave discharge. Small amounts of hydrogen and oxygen were mixed in the operational argon gas during discharge. To clarify the details of combustion, optical emission was measured. The constituents of combustion-processed gases were observed by a quadruple mass spectrometer. The degree of hydrogen oxidation, the so-called conversion rate, increased with input microwave power. The maximum hydrogen conversion rate was greater than 80% under these experimental conditions. During discharge, an optical emission peak due to OH radicals was observed.

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© 2012 by The Japan Society of Plasma Science and Nuclear Fusion Research
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