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Fulleranes by direct reaction with hydrogen gas at elevated conditions
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik.
2010 (Engelska)Ingår i: Fulleranes: the hydrogenated fullerenes / [ed] Franco Cataldo, Susana Iglesias-Groth, Dordrecht: Springer Netherlands, 2010, s. 85-103Kapitel i bok, del av antologi (Övrigt vetenskapligt)
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.

Ort, förlag, år, upplaga, sidor
Dordrecht: Springer Netherlands, 2010. s. 85-103
Serie
Carbon Materials: Chemistry and Physics, ISSN 1875-0745 ; 02
Nationell ämneskategori
Organisk kemi Fysikalisk kemi
Identifikatorer
URN: urn:nbn:se:umu:diva-37972DOI: 10.1007/978-1-4020-9887-1_5ISI: 000277973900005ISBN: 978-1-4020-9886-4 (tryckt)ISBN: 978-1-4020-9887-1 (tryckt)OAI: oai:DiVA.org:umu-37972DiVA, id: diva2:371356
Tillgänglig från: 2010-11-19 Skapad: 2010-11-19 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

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Talyzin, Alexandr

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