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Fulleranes by direct reaction with hydrogen gas at elevated conditions
Umeå University, Faculty of Science and Technology, Department of Physics.
2010 (English)In: Fulleranes: the hydrogenated fullerenes / [ed] Franco Cataldo, Susana Iglesias-Groth, Dordrecht: Springer Netherlands, 2010, 85-103 p.Chapter in book (Other academic)
Abstract [en]

Reaction of solid fullerenes with hydrogen gas occurs with or without catalysts at elevated conditions. Composition of hydrofullerene mixture obtained in this reaction depends strongly on temperature (350–450°C), hydrogen pressure (typically 10–120 bar) and duration of treatment. Saturation of hydrogenation occurs after tens of hours, depending on temperature of reaction. In case of extra strong hydrogenation prolonged reaction leads to formation of fulleranes with composition C60Hx approaching number of hydrogen atoms X = 60. These fulleranes are highly unstable and decompose first with formation of fragmented hydrofullerenes with progressively smaller number of carbon atoms C59, C58, C57 etc., followed by collapse of cage structure. Since the collapse occurs at the conditions of high temperature and high hydrogen pressure, all breaking C–C bonds are saturated immediately with hydrogen and new C–H bonds are formed. Therefore, large fragments of fullerane molecules are able to survive and large polycyclic aromatic hydrocarbons (PAH’s) formed as a result of cage structure collapse.

Place, publisher, year, edition, pages
Dordrecht: Springer Netherlands, 2010. 85-103 p.
Series
Carbon Materials: Chemistry and Physics, ISSN 1875-0745 ; 02
National Category
Organic Chemistry Physical Chemistry
Identifiers
URN: urn:nbn:se:umu:diva-37972DOI: 10.1007/978-1-4020-9887-1_5ISI: 000277973900005ISBN: 978-1-4020-9886-4 (print)ISBN: 978-1-4020-9887-1 (print)OAI: oai:DiVA.org:umu-37972DiVA: diva2:371356
Available from: 2010-11-19 Created: 2010-11-19 Last updated: 2013-07-04Bibliographically approved

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CiteExportLink to record
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