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Experimental study of the plasma chemistry in atmospheric pressure plasma contacts with dilute sulfuric acid

ORAL

Abstract

Our previous study developed a gas-liquid interfacial plasma sulfonation system under atmospheric pressure conditions. During the plasma sulfonation process, droplets emit when the plasma attacks the solution surface, and some active species (•OH, HOSO2•) and long-lived species (SO2, SO3, H2O2) are generated. In this work, the gaseous elements (long-live species) were measured by the Fourier-transform infrared spectrometer (FTIR) and mass spectrometer (MS) during liquid-cathode and liquid-anode discharge. •OH generation was confirmed by optical emission spectroscopy. It is found that SO2 and some other species are only produced with droplets transmitted in the liquid-cathode discharge.

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Presenters

  • Siqi Deng

    Electrical and Electronic Engineering , Tokyo Institute of Technology

Authors

  • Siqi Deng

    Electrical and Electronic Engineering , Tokyo Institute of Technology

  • Nozomi Takeuchi

    Electrical and Electronic Engineering , Tokyo Institute of Technology, Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, Tokyo Institute of Technology, Tokyo, Tokyo Institute of Technology

  • Junko Hieda

    Nagoya University, Department of Chemical Systems Engineering, Nagoya University

  • Katsuyuki Takahashi

    Iwate University, Faculty of Science and Engineering, Iwate University, Iwate university

  • Kosuke Tachibana

    Oita University, Department of Innovative Engineering, Oita University

  • Oi Lun Li

    Pusan National University, School of Materials Science and Engineering, Pusan National University