Nonself-sustained microwave discharge in a system for hydrocarbon decomposition and generation of carbon nanotubes

Abstract

This paper deals with the investigation of a method for sustainment of high-power microwave discharge in the installation for natural-gas decomposition. The essence of the method is to provide a generation of auxiliary discharge plasma in the area where the main microwave plasma torch burns. The design of the electrode system of auxiliary discharge resembles that for a coaxial plasmatron that consumes an average current of about 0.1 A. Then, the nonself-sustained microwave discharge with a frequency of 2.45 GHz has been obtained at a power level from 1 to 3 kW. Such a discharge has been used in the installation for natural-gas decomposition and generation of the carbon nano- tubes. With a typical gas flow of 1 m³/h, the natural-gas conversion achieves 40%-80%. Three types of nanotubes are contained in the final product: multilayer tubes, single-layer tubes, and onion-type tubes.

Original language	English
Article number	5313884
Pages (from-to)	2298-2302
Number of pages	5
Journal	IEEE Transactions on Plasma Science
Volume	37
Issue number	12
DOIs	https://doi.org/10.1109/TPS.2009.2032546
Publication status	Published - 1 Dec 2009

Keywords

Glow-to-spark transition
Microwave discharge
Nanotubes
Plasma torches

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

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10.1109/TPS.2009.2032546

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Korolev, Y. D., Frants, O. B., Landl, N. V., Geyman, V. G., Zerlitsyn, A. G., Shiyan, V. P., & Medvedev, Y. V. (2009). Nonself-sustained microwave discharge in a system for hydrocarbon decomposition and generation of carbon nanotubes. IEEE Transactions on Plasma Science, 37(12), 2298-2302. [5313884]. https://doi.org/10.1109/TPS.2009.2032546

Nonself-sustained microwave discharge in a system for hydrocarbon decomposition and generation of carbon nanotubes. / Korolev, Yury D.; Frants, Oleg B.; Landl, Nikolay V.; Geyman, Vladimir G.; Zerlitsyn, Aleksey G.; Shiyan, Vladimir P.; Medvedev, Yury V.

In: IEEE Transactions on Plasma Science, Vol. 37, No. 12, 5313884, 01.12.2009, p. 2298-2302.

Research output: Contribution to journal › Article

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abstract = "This paper deals with the investigation of a method for sustainment of high-power microwave discharge in the installation for natural-gas decomposition. The essence of the method is to provide a generation of auxiliary discharge plasma in the area where the main microwave plasma torch burns. The design of the electrode system of auxiliary discharge resembles that for a coaxial plasmatron that consumes an average current of about 0.1 A. Then, the nonself-sustained microwave discharge with a frequency of 2.45 GHz has been obtained at a power level from 1 to 3 kW. Such a discharge has been used in the installation for natural-gas decomposition and generation of the carbon nano- tubes. With a typical gas flow of 1 m3/h, the natural-gas conversion achieves 40%-80%. Three types of nanotubes are contained in the final product: multilayer tubes, single-layer tubes, and onion-type tubes.",

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