Investigation of reactive species using various gas plasmas

In this study, atmospheric nonequilibrium plasmas were generated with six gas species using a multi-gas plasma jet. Singlet oxygen, OH radicals, H radicals, and NO radicals, in reaction with a solution interface, were measured using electron spin resonance. Carbon dioxide plasma generated the larges...

Full description

Saved in:
Bibliographic Details
Published in:RSC advances 2014-01, Vol.4 (75), p.39901-39905
Main Authors: Takamatsu, Toshihiro, Uehara, Kodai, Sasaki, Yota, Miyahara, Hidekazu, Matsumura, Yuriko, Iwasawa, Atsuo, Ito, Norihiko, Azuma, Takeshi, Kohno, Masahiro, Okino, Akitoshi
Format: Article
Language:English
Subjects:
Argon
Carbon dioxide
Electron paramagnetic resonance
Electron spin resonance
Gas plasmas
Nitrogen plasma
Radicals
Singlet oxygen
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, atmospheric nonequilibrium plasmas were generated with six gas species using a multi-gas plasma jet. Singlet oxygen, OH radicals, H radicals, and NO radicals, in reaction with a solution interface, were measured using electron spin resonance. Carbon dioxide plasma generated the largest amount (90 μM) of singlet oxygen at 30 s, and argon-containing vapor gas plasma generated the largest amount (210 μM) of OH radicals. Among the homo-atomic gas species, nitrogen plasma generated the largest amount (130 μM) of OH radicals. In addition, H radicals were generated with argon, helium, and nitrogen plasmas. NO radicals were generated with nitrogen–oxygen plasma, and the largest amount of NO radicals was generated at a 1 : 1 volume ratio. These measurement results of the reactive species generated by individual gas plasmas permit identification of the production processes of reactive species.
ISSN:2046-2069
2046-2069
DOI:10.1039/C4RA05936K