Change search
ReferencesLink to record
Permanent link

Direct link
Formation of nitrogen-doped graphene nanoscrolls by adsorption of magnetic gamma-Fe2O3 nanoparticles
Show others and affiliations
2013 (English)In: Nature Communications, ISSN 2041-1723, Vol. 4, 2319- p.Article in journal (Refereed) Published
Abstract [en]

Graphene nanoscrolls are Archimedean-type spirals formed by rolling single-layer graphene sheets. Their unique structure makes them conceptually interesting and understanding their formation gives important information on the manipulation and characteristics of various carbon nanostructures. Here we report a 100% efficient process to transform nitrogen-doped reduced graphene oxide sheets into homogeneous nanoscrolls by decoration with magnetic gamma-Fe2O3 nanoparticles. Through a large number of control experiments, magnetic characterization of the decorated nanoparticles, and ab initio calculations, we conclude that the rolling is initiated by the strong adsorption of maghemite nanoparticles at nitrogen defects in the graphene lattice and their mutual magnetic interaction. The nanoscroll formation is fully reversible and upon removal of the maghemite nanoparticles, the nanoscrolls return to open sheets. Besides supplying information on the rolling mechanism of graphene nanoscrolls, our results also provide important information on the stabilization of iron oxide nanoparticles.

Place, publisher, year, edition, pages
2013. Vol. 4, 2319- p.
National Category
Chemical Sciences
URN: urn:nbn:se:su:diva-94048DOI: 10.1038/ncomms3319ISI: 000323752300004OAI: diva2:651398


Available from: 2013-09-25 Created: 2013-09-24 Last updated: 2013-09-25Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Tai, Cheuk-Wai
By organisation
Department of Materials and Environmental Chemistry (MMK)
In the same journal
Nature Communications
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 13 hits
ReferencesLink to record
Permanent link

Direct link