Liquid-phase reactions induced by atmospheric pressure glow discharge with liquid electrode

27th Summer School and International Symposium on the Physics of Ionized Gases

Tochikubo, Fumiyoshi^1 ; Shirai, Naoki^1 ; Uchida, Satoshi^1

Department of Electrical and Electronic Engineering, Tokyo Metropolitan University, 1-1, Minami-Osawa, Tokyo, Hachioji

192-0397, Japan^1

关键词: Ag and au nanoparticles;    Atmospheric pressure glow discharge;    Ferromagnetic particles;    Gas-phase nitrogen;    Liquid compositions;    Liquid-phase reaction;    Oxidative environment;    Plasma generation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/565/1/012010/pdf
DOI  :  10.1088/1742-6596/565/1/012010

来源: IOP

【 摘 要 】

We experimentally investigated some of the initial reactions in a liquid induced by electron or positive-ion irradiation from an atmospheric-pressure dc glow discharge in contact with the liquid. We used an H-shaped glass reactor to observe the effects of electron irradiation and positive-ion irradiation on the liquid-phase reaction separately and simultaneously. Aqueous solutions of NaCl, AgNO3, HAuCl4, and FeCl2are used as the electrolyte. Solutions of AgNO3and HAuCl4are used for the generation of Ag and Au nanoparticles, respectively. Solution of FeCl2is used for the generation of ferromagnetic particles. Experimental results showed that electron irradiation of the liquid surface generates OH-in water and that positive-ion irradiation of the liquid surface generates H+in water even without the dissolution of gas-phase nitrogen oxide. A possible reaction process is qualitatively discussed. We also showed that the control of reductive and oxidative environment in the liquid is possible not only by the gas composition for the plasma generation but also by the liquid composition.