Emission Spectroscopy of Sliding Discharge inside Quartz Capillary Tubes at Atmospheric Pressure
Sato S., Hensel K., Yamauchi H., Takashima K., Mizuno A.
27th Annual Meeting of Institute of Electrostatics of Japan, Tsukuba (Japan), September 10-11, 1-2 (2007)
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Abstract: Selectivity and energy efficiency of plasma chemical processes can be significantly improved if plasma is combined with a catalyst. The generation of stable discharge plasma inside the narrow capillaries of automobile catalytic honeycomb is, however, quite difficult. The paper present a novel method, which utilizes the combination of packed-bed discharge, connected in series with the honeycomb capillaries. By the application of dc voltage across the capillaries, the packed-bed discharge can be extended inside the capillaries and form so-called sliding discharge. The paper presents electrical and optical characteristics of the sliding discharge generated inside a bundle of quartz capillaries. The effects of discharge voltage and power, gas mixture composition and capillary diameter on the emission spectra
of the discharge are presented.
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