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Room-Temperature Synthesis of Carbonaceous Films of Defined Thickness
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SYSNO ASEP 0101135 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Room-Temperature Synthesis of Carbonaceous Films of Defined Thickness Title Příprava uhlíkových filmů definované tloušťky při pokojové teplotě Author(s) Kavan, Ladislav (UFCH-W) RID, ORCID
Micka, Karel (UFCH-W) RID
Hlavatý, Jaromír (UFCH-W)Source Title Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756
Roč. 16, - (2004), s. 4043-4049Number of pages 7 s. Language eng - English Country US - United States Keywords carbonaceous films ; liquid amalgam ; alkali metal Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA4040306 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KSK4040110 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) Annotation Thin carbonaceous films were prepared on top of liquid amalgam of alkali metal (Li, Na, K) from gaseous perfluorocyclopentene, perfluorodecalin, perfluoronaphthalene, perfluorobenzene, perfluoro-2-butyne, perfluorohexane, perfluorobiphenyl, perfluorocyclobutane, perfluorocyclohexane, perfluoropyridine, perfluorobenzonitrile, and cyanuric fluoride. All the mentioned precursors are quantitatively dehalogenated by the alkali metal amalgam to give a composite film containing n-doped carbon with the interspersed alkali metal fluoride. The carbonaceous products from perfluoropyridine and cyanuric fluoride contain nitrogen, while the N/C proportion is identical to that in the precursor. The kinetics of film growth was rationalized in terms of the electrochemical process in short-circuited corrosion cell. The presented mechanism of film growth at the gas/liquid interface upgrades the previously suggested model of carbonization of solid fluoropolymers by alkali metal amalgams. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2005
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