Investigation of reactive species using various gas plasmas

By T. Takamatsu, K. Uehara, Yota Sasaki, H. Miyahara, Yuriko Matsumura, A. Iwasawa, Norihiko Ito, Takeshi Azuma, M. Kohno, A. Okino. 2014

196 citations recorded by the source corpus.

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.

Subfields: Electrical and Electronic Engineering, Mechanics of Materials, Radiology, Nuclear Medicine and Imaging

View Paper: https://www.semanticscholar.org/paper/25170bf6d534fcb36a9dcd6e1b4546bc2b7ba0aa