Experimental study of physical parameters significant in fullerene synthesis

In this work, the effect of physical parameters on the yield of fullerene synthesized in a hollow cathode plasma reactor is investigated. The experimental investigations done previously have shown that the fullerene yield depended on technical parameters - the current intensity, inert gas pressure,...

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Main Authors: Todorović-Marković Biljana M., Marković Z., Marinković N., Nenadović Tomislav M.
Format: Article
Language:English
Published: Serbian Chemical Society 2003-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2003/0352-51390307543T.pdf
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author Todorović-Marković Biljana M.
Marković Z.
Marinković N.
Nenadović Tomislav M.
author_facet Todorović-Marković Biljana M.
Marković Z.
Marinković N.
Nenadović Tomislav M.
author_sort Todorović-Marković Biljana M.
collection DOAJ
description In this work, the effect of physical parameters on the yield of fullerene synthesized in a hollow cathode plasma reactor is investigated. The experimental investigations done previously have shown that the fullerene yield depended on technical parameters - the current intensity, inert gas pressure, type of gas and interelectrode gap. The aim of this work was to show that the fullerene yield depends on physical parameters - carbon concentration, carbon flow rate from the interelectrode gap, axial temperature and temperature gradient between the are channel and the chamber walls as well. It was found that fullerene synthesis occurs in an inert heat bath with dimensions determined by the temperature gradient. The lower temperature limit is around 2000 K and the value of the upper limit is the value of the axis temperature which depends on the discharge conditions. The synthesis of fullerenes is more effective if the carbon concentration in the heat bath is large and the carbon flow rate from that zone to colder parts of chamber is small.
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spelling doaj.art-54f5fa24d4434175ba0ecba099f80f702022-12-21T17:23:47ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212003-01-0168754354710.2298/JSC0307543T0352-51390307543TExperimental study of physical parameters significant in fullerene synthesisTodorović-Marković Biljana M.0Marković Z.1Marinković N.2Nenadović Tomislav M.3Vinča Institute of Nuclear Sciences, P. O. Box 522, Belgrade, Serbia and MontenegroVinča Institute of Nuclear Sciences, P. O. Box 522, Belgrade, Serbia and MontenegroVinča Institute of Nuclear Sciences, P. O. Box 522, Belgrade, Serbia and MontenegroVinča Institute of Nuclear Sciences, P. O. Box 522, Belgrade, Serbia and MontenegroIn this work, the effect of physical parameters on the yield of fullerene synthesized in a hollow cathode plasma reactor is investigated. The experimental investigations done previously have shown that the fullerene yield depended on technical parameters - the current intensity, inert gas pressure, type of gas and interelectrode gap. The aim of this work was to show that the fullerene yield depends on physical parameters - carbon concentration, carbon flow rate from the interelectrode gap, axial temperature and temperature gradient between the are channel and the chamber walls as well. It was found that fullerene synthesis occurs in an inert heat bath with dimensions determined by the temperature gradient. The lower temperature limit is around 2000 K and the value of the upper limit is the value of the axis temperature which depends on the discharge conditions. The synthesis of fullerenes is more effective if the carbon concentration in the heat bath is large and the carbon flow rate from that zone to colder parts of chamber is small.http://www.doiserbia.nb.rs/img/doi/0352-5139/2003/0352-51390307543T.pdffullerenecarbon arccarbon concentrationtemperature.
spellingShingle Todorović-Marković Biljana M.
Marković Z.
Marinković N.
Nenadović Tomislav M.
Experimental study of physical parameters significant in fullerene synthesis
Journal of the Serbian Chemical Society
fullerene
carbon arc
carbon concentration
temperature.
title Experimental study of physical parameters significant in fullerene synthesis
title_full Experimental study of physical parameters significant in fullerene synthesis
title_fullStr Experimental study of physical parameters significant in fullerene synthesis
title_full_unstemmed Experimental study of physical parameters significant in fullerene synthesis
title_short Experimental study of physical parameters significant in fullerene synthesis
title_sort experimental study of physical parameters significant in fullerene synthesis
topic fullerene
carbon arc
carbon concentration
temperature.
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2003/0352-51390307543T.pdf
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AT markovicz experimentalstudyofphysicalparameterssignificantinfullerenesynthesis
AT marinkovicn experimentalstudyofphysicalparameterssignificantinfullerenesynthesis
AT nenadovictomislavm experimentalstudyofphysicalparameterssignificantinfullerenesynthesis