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Reaction of hydrogen gas with C60 at elevated pressure and temperature: Hydrogenation and cage fragmentation.
Umeå University, Faculty of Science and Technology, Physics.
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2006 (English)In: Journal of Physical Chemistry A, ISSN 1089-5639, Vol. 110, no 27, 8528-34 p.Article in journal (Refereed) Published
Abstract [en]

Products of the reaction of C60 with H2 gas have been monitored by high-resolution atmospheric pressure

photoionization Fourier transform ion cyclotron resonance mass spectrometry (APPI FT-ICR MS), X-ray

diffraction, and IR spectroscopy as a function of hydrogenation period. Samples were synthesized at 673 K

and 120 bar hydrogen pressure for hydrogenation periods between 300 and 5000 min, resulting in the formation

of hydrofullerene mixtures with hydrogen content ranging from 1.6 to 5.3 wt %. Highly reduced C60Hx (x >

36-40) and products of their fragmentation were identified in these samples by APPI FT-ICR MS. A sharp

change in structure was observed for samples with at least 5.0 wt % of hydrogen. Low-mass (300-500 Da)

hydrogenation products not observed by prior field desorption (FD) FT-ICR MS were detected by APPI

FT-ICR MS and their elemental compositions obtained for the first time. Synthetic and analytical fragmentation

pathways are discussed.

Place, publisher, year, edition, pages
2006. Vol. 110, no 27, 8528-34 p.
Keyword [en]
fullerenes, C60, hydrogen, hydrofullerenes, mass spectroscopy, synthesis, analysis, molecular breakdown, high pressure, high temperature
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:umu:diva-11903DOI: doi:10.1021/jp0557971OAI: oai:DiVA.org:umu-11903DiVA: diva2:151574
Available from: 2007-12-12 Created: 2007-12-12 Last updated: 2011-01-11Bibliographically approved

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Publisher's full texthttp://pubs.acs.org/cgi-bin/article.cgi/jpcafh/2006/110/i27/pdf/jp0557971.pdf

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CiteExportLink to record
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