TITLE

Raman spectroscopy of reaction fields induced by plasma in supercritical CO2

AUTHOR(S)
Tomai, Takaaki; Yui, Hiroharu; Terashima, Kazuo
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/13/2009, Vol. 94 Issue 15, p151501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The characteristic microstructures of supercritical fluids, such as density fluctuation near the critical point, in reaction fields induced by low-temperature plasma were investigated by using Raman spectroscopy. It was found that the decrease in the density of CO2 during plasma generation was less than 0.02 g/cm3 (critical density of CO2:0.467 g/cm3), when compared to the decrease in density of pure CO2 for a wide pressure range from gaseous to supercritical conditions. Moreover, it was experimentally verified that the density fluctuation observed near the critical point persists in the reaction field.
ACCESSION #
37831877

 

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