Reaction of hydrogen gas with C60 at elevated pressure and temperature: Hydrogenation and cage fragmentation.
2006 (English)In: Journal of Physical Chemistry A, ISSN 1089-5639, Vol. 110, no 27, 8528-34 p.Article in journal (Refereed) Published
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.
fullerenes, C60, hydrogen, hydrofullerenes, mass spectroscopy, synthesis, analysis, molecular breakdown, high pressure, high temperature
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:umu:diva-11903DOI: doi:10.1021/jp0557971OAI: oai:DiVA.org:umu-11903DiVA: diva2:151574