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High-temperature transformations of coronene-based graphene nanoribbons encapsulated in SWNTs
Umeå University, Faculty of Science and Technology, Department of Physics.
2015 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 252, no 11, 2491-2495 p.Article in journal (Refereed) PublishedText
Abstract [en]

Coronene-based graphene nanoribbons encapsulated inside single-walled carbon nanotubes (SWNTs) were prepared 440 degrees C under Ar and annealed at temperatures up to 825 degrees C. The structural modifications of coronene/SWNT samples were studied using Raman spectroscopy and transmission electron microscopy. Coronene and coronene-based graphene nanoribbons are hydrogen terminated and annealing at temperatures above the stability limit of C-H bonds were expected to result in formation of new products. Indeed, Raman spectroscopy revealed the appearance of new sharp peaks after annealing of samples above 650 degrees C. The possible nature of encapsulated products produced by annealing of hydrogen terminated nanoribbons inside SWNTs is discussed. 

Place, publisher, year, edition, pages
2015. Vol. 252, no 11, 2491-2495 p.
Keyword [en]
carbon nanotubes, coronene, graphene, encapsulation, nanoribbons
National Category
Condensed Matter Physics
URN: urn:nbn:se:umu:diva-113865DOI: 10.1002/pssb.201552212ISI: 000364690400024OAI: diva2:911568
Available from: 2016-03-13 Created: 2016-01-04 Last updated: 2016-03-13Bibliographically approved

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Talyzin, Alexandr V.
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