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Synthesis Of Nitrogen-Containing Carbon By Solution Plasma Process At Various Pulse Repetition Rates

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  • KOANGYONG HYUN

    (Division of Naval Officer Science, Mokpo National Maritime University, Mokpo, Jeonnam 58628, Korea)

Abstract

The solution plasma process (SPP) has attracted considerable attention for the synthesis of carbon nanomaterials; the SPP uses electrical discharges generated directly by a bipolar pulsed power supply for various combinations of the solvents and solutes in the solution. However, the SPP requires high-temperature heat treatment for enhancing conductivity and exhibiting catalyst activity. Furthermore, the metal used as the electrode in the SPP is generally sputtered during discharge. This study presents the feasibility of reducing the heat-treatment step and solving the problem of sputtering of the metal electrodes by simply increasing the repetition frequency of the bipolar pulsed power. During synthesis, the pulse frequency acts as the graphitization catalyst. The enhancement of crystallinity was further confirmed by X-ray diffraction (XRD), Raman spectroscopy, and transmission electron microscopy (TEM). The findings of this study are expected to contribute toward research on improving the properties of carbon for various applications of the SPP synthesis methods.

Suggested Citation

  • Koangyong Hyun, 2023. "Synthesis Of Nitrogen-Containing Carbon By Solution Plasma Process At Various Pulse Repetition Rates," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 30(08), pages 1-7, August.
    • Handle: RePEc:wsi:srlxxx:v:30:y:2023:i:08:n:s0218625x2350052x
    DOI: 10.1142/S0218625X2350052X
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