Raman spectroscopy of reaction fields induced by plasma in supercritical CO2

Takaaki Tomai, Hiroharu Yui, Kazuo Terashima

Research output: Contribution to journalArticle

9 Citations (Scopus)

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/cm> (critical density of CO 2:0.467 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.

Original languageEnglish
Article number151501
JournalApplied Physics Letters
Volume94
Issue number15
DOIs
Publication statusPublished - 2009 Apr 27
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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