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

    Research output: Contribution to journalArticle

    • 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
    • Xungai Wang

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    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.


    Original languageEnglish
    Number of pages5
    Pages (from-to)306-310
    JournalPlasma Processes and Polymers
    Journal publication dateMar 2016
    Issue number3
    Early online date12 Nov 2015
    Publication statusPublished - Mar 2016

      Research areas

    • nanosecond, plasma in liquid, pulsed discharges, reactive species, selectivity

    ID: 119750144