Characteristics of OH* Generation in Pin-to-Electrolyte Discharges

Author

Sung-Young Yoon ; Su-Jeong Kim ; Young Ki Hong ; Sang-Heun Lee ; Gon-Ho Kim

Author_Institution

Dept. of Nucl. Eng., Seoul Nat. Univ., Seoul, South Korea

Volume

42

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

2814

Lastpage

2815

Abstract

The locations of excited hydroxyl radical [OH (A-X), in short OH*] generation are observed using the highspeed images in low-voltage-driven pin-to-electrolyte discharges. A comparison of the emission from the plasma and OH* reveals that the generation site of OH* is depending on the electrolyte polarity. It implies that the difference of OH* properties with polarity can be due to the OH* generation pathways on the electrolyte surface and in the plasma volume, corresponding to the humidity, the electron temperature, and the quenching rate.

Keywords

discharges (electric); electrolytes; free radicals; plasma diagnostics; OH; OH* generation; OH* properties; electrolyte polarity; electrolyte surface; electron temperature; excited hydroxyl radical; high-speed images; humidity; low-voltage-driven pin-to-electrolyte discharges; plasma volume; quenching rate; Anodes; Cathodes; Discharges (electric); Fault diagnosis; Plasmas; Water; Atmospheric pressure plasma; hydroxyl radical [OH(A-X); hydroxyl radical [OH(A-X), in short OH*]; in short OH*]; pin-to-electrolyte discharge; polarity; polarity.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2333587

Filename

6849982