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Hydrogenation of C-60 in Peapods: Physical Chemistry in Nano Vessels
Universite Montpellier II. (LCVN)
University of Pennsylvania. (DMSE)
Umeå University, Faculty of Science and Technology, Physics.
Universite Montpellier II. (LCVN)
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2009 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, Vol. 113, no 20, 8583-8587 p.Article in journal (Refereed) Published
Abstract [en]

Hydrogenation of C-60 molecules inside SWNT was achieved by direct reaction with hydrogen gas at elevated pressure and temperature. Evidence for the C-60 hydrogenation in peapods is provided by isotopic engineering with specific enrichment of encapsulated species and high resolution C-13 and H-1 NMR spectroscopy with the observation of characteristic diamagnetic and paramagnetic shifts of the NMR lines and the appearance of sp(3) carbon resonances. We estimate that approximately 78% of the C-60 molecules inside SWNTs are hydrogenated to an average degree of 14 hydrogen atoms per C-60 molecule. As a consequence, the rotational dynamics of the encapsulated C60Hx molecules is clearly hindered. Our successful hydrogenation experiments open completely new roads to understand and control confined chemical reactions at the nano scale

Place, publisher, year, edition, pages
WASHINGTON, DC 20036: AMER CHEMICAL SOC, , 2009. Vol. 113, no 20, 8583-8587 p.
Keyword [en]
Carbon nanotubes, Nuclear magnetic Resonance spectroscopy, Hydrogenation, peapods
National Category
Condensed Matter Physics
Research subject
Solid State Physics
Identifiers
URN: urn:nbn:se:umu:diva-25648DOI: 10.1021/jp8095743OAI: oai:DiVA.org:umu-25648DiVA: diva2:232871
Available from: 2009-08-28 Created: 2009-08-26 Last updated: 2009-12-16Bibliographically approved

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Talyzin, AlexandrWågberg, Thomas

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