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Title: Static gas-liquid interfacial direct current discharge plasmas using ionic liquid cathode

Abstract

Due to the unique properties of ionic liquids such as their extremely low vapor pressure and high heat capacity, we have succeeded in creating the static and stable gas (plasmas)-liquid (ionic liquids) interfacial field using a direct current discharge under a low gas pressure condition. It is clarified that the ionic liquid works as a nonmetal liquid electrode, and furthermore, a secondary electron emission coefficient of the ionic liquid is larger than that of conventional metal electrodes. The plasma potential structure of the gas-liquid interfacial region, and resultant interactions between the plasma and the ionic liquid are revealed by changing a polarity of the electrode in the ionic liquid. By utilizing the ionic liquid as a cathode electrode, the positive ions in the plasma region are found to be irradiated to the ionic liquid. This ion irradiation causes physical and chemical reactions at the gas-liquid interfacial region without the vaporization of the ionic liquid.

Authors:
 [1]; ;  [1]
  1. Department of Electronic Engineering, Tohoku University, Sendai 980-8579 (Japan)
Publication Date:
OSTI Identifier:
21356160
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 105; Journal Issue: 10; Other Information: DOI: 10.1063/1.3133213; (c) 2009 American Institute of Physics; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CATHODES; CATIONS; CHEMICAL REACTIONS; DIRECT CURRENT; ELECTRON EMISSION; EVAPORATION; ION BEAMS; METALS; NONMETALS; PLASMA; PLASMA DIAGNOSTICS; PLASMA POTENTIAL; SPECIFIC HEAT; VAPOR PRESSURE; BEAMS; CHARGED PARTICLES; CURRENTS; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTRODES; ELEMENTS; EMISSION; IONS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES

Citation Formats

Kaneko, T, CREST/JST, Tokyo 102-0075, Baba, K, and Hatakeyama, R. Static gas-liquid interfacial direct current discharge plasmas using ionic liquid cathode. United States: N. p., 2009. Web. doi:10.1063/1.3133213.
Kaneko, T, CREST/JST, Tokyo 102-0075, Baba, K, & Hatakeyama, R. Static gas-liquid interfacial direct current discharge plasmas using ionic liquid cathode. United States. https://doi.org/10.1063/1.3133213
Kaneko, T, CREST/JST, Tokyo 102-0075, Baba, K, and Hatakeyama, R. 2009. "Static gas-liquid interfacial direct current discharge plasmas using ionic liquid cathode". United States. https://doi.org/10.1063/1.3133213.
@article{osti_21356160,
title = {Static gas-liquid interfacial direct current discharge plasmas using ionic liquid cathode},
author = {Kaneko, T and CREST/JST, Tokyo 102-0075 and Baba, K and Hatakeyama, R},
abstractNote = {Due to the unique properties of ionic liquids such as their extremely low vapor pressure and high heat capacity, we have succeeded in creating the static and stable gas (plasmas)-liquid (ionic liquids) interfacial field using a direct current discharge under a low gas pressure condition. It is clarified that the ionic liquid works as a nonmetal liquid electrode, and furthermore, a secondary electron emission coefficient of the ionic liquid is larger than that of conventional metal electrodes. The plasma potential structure of the gas-liquid interfacial region, and resultant interactions between the plasma and the ionic liquid are revealed by changing a polarity of the electrode in the ionic liquid. By utilizing the ionic liquid as a cathode electrode, the positive ions in the plasma region are found to be irradiated to the ionic liquid. This ion irradiation causes physical and chemical reactions at the gas-liquid interfacial region without the vaporization of the ionic liquid.},
doi = {10.1063/1.3133213},
url = {https://www.osti.gov/biblio/21356160}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 10,
volume = 105,
place = {United States},
year = {Fri May 15 00:00:00 EDT 2009},
month = {Fri May 15 00:00:00 EDT 2009}
}