[Table of Contents]

Plasma and Fusion Research

Volume 5, 042 (2010)

Letters

Synthesis of Ammonia through Direct Chemical Reactions between an Atmospheric Nitrogen Plasma Jet and a Liquid
Yuusuke KUBOTA, Kazutaka KOGA1), Masatomi OHNO and Tamio HARA
Toyota Technological Institute, Nagoya 468-8511, Japan
1)
Nihon Pharmaceutical University, Kita-adachi, Saitama 362-0806, Japan
(Received 14 May 2010 / Accepted 21 September 2010 / Published 9 November 2010)

Abstract

Fundamental chemical reactions between an atmospheric nitrogen plasma jet and water or a water/ethanol solution have been investigated. When the nitrogen plasma jet was injected directly into pure water, active nitrogen species produced nitric acid and ammonia through fatal reactions with H2O. The interaction between nitrogen plasma and a liquid mixture of pure water and ethanol produced NH4+ ions effectively. These experimental results clearly show that the active nitrogen species in the pulsed-discharge atmospheric plasma can interact strongly with materials in solution to extract oxygen or hydrogen from them and add atomic nitrogen to them.

Keywords

plasma-liquid interaction, ammonia, nitric acid, water, ethanol, atmospheric plasma jet

DOI: 10.1585/pfr.5.042

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This paper may be cited as follows:

Yuusuke KUBOTA, Kazutaka KOGA, Masatomi OHNO and Tamio HARA, Plasma Fusion Res. 5, 042 (2010).