Efficient and Selectable Production of Reactive Species Using a Nanosecond Pulsed Discharge in Gas Bubbles in Liquid

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• 作者：Xiujuan J. Dai ; Cormac S. Corr ; Sri B. Ponraj ; Mohammad Maniruzzaman ; Arun T. Ambujakshan ; Zhiqiang Chen ; Ladge Kviz ; Robert Lovett ; Gayathri D. Rajmohan ; David R. de Celis ; Marion L. Wright ; Peter R. Lamb ; Yakov E. Krasik ; David B. Graves ; William G. Graham ; Riccardo d' ; Agostino and Xungai Wang
• 关键词：nanosecond ; plasma in liquid ; pulsed discharges ; reactive species ; selectivity
• 刊名：Plasma Processes and Polymers
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：13
• 期：3
• 页码：306-310
• 全文大小：1121K
• ISSN：1612-8869

文摘

A plasma gas bubble-in-liquid method for high production of selectable reactive species using a nanosecond pulse generator has been developed. The gas of choice is fed through a hollow needle in a point-to-plate bubble discharge, enabling improved selection of reactive species. The increased interface reactions, between the gas-plasma and water through bubbles, give higher productivity. H₂O₂ was the predominant species produced using Ar plasma, while predominantly and NO₂ were generated using air plasma, in good agreement with the observed emission spectra. This method has nearly 100% selectivity for H₂O₂, with seven times higher production, and 92% selectivity for , with nearly twice the production, compared with a plasma above the water.