NMR strategies to study the local magnetic properties of carbon nanotubes

Handle URI:
http://hdl.handle.net/10754/562074
Title:
NMR strategies to study the local magnetic properties of carbon nanotubes
Authors:
Abou-Hamad, Edy; Kim, Younghyun; Bouhrara, Mohamed; Saih, Youssef; Wågberg, Thomas; Luzzi, David E.; Goze-Bac, Christophe
Abstract:
The local magnetic properties of the one dimensional inner space of the nanotubes are investigated using 13C nuclear magnetic resonance spectroscopy of encapsulated fullerene molecules inside single walled carbon nanotubes. Isotope engineering and magnetically purified nanotubes have been advantageously used on our study to discriminate between the different diamagnetic and paramagnetic shifts of the resonances. Ring currents originating from the π electrons circulating on the nanotube, are found to actively screen the applied magnetic field by -36.9 ppm. Defects and holes in the nanotube walls cancel this screening locally. What is interesting, that at high magnetic fields, the modifications of the NMR resonances of the molecules from free to encapsulated can be exploited to determine some structural characteristics of the surrounding nanotubes, never observed experimentally. © 2011 Elsevier B.V. All rights reserved.
KAUST Department:
KAUST Catalysis Center (KCC)
Publisher:
Elsevier BV
Journal:
Physica B: Condensed Matter
Issue Date:
Feb-2012
DOI:
10.1016/j.physb.2011.12.012
Type:
Article
ISSN:
09214526
Appears in Collections:
Articles; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAbou-Hamad, Edyen
dc.contributor.authorKim, Younghyunen
dc.contributor.authorBouhrara, Mohameden
dc.contributor.authorSaih, Youssefen
dc.contributor.authorWågberg, Thomasen
dc.contributor.authorLuzzi, David E.en
dc.contributor.authorGoze-Bac, Christopheen
dc.date.accessioned2015-08-03T09:44:08Zen
dc.date.available2015-08-03T09:44:08Zen
dc.date.issued2012-02en
dc.identifier.issn09214526en
dc.identifier.doi10.1016/j.physb.2011.12.012en
dc.identifier.urihttp://hdl.handle.net/10754/562074en
dc.description.abstractThe local magnetic properties of the one dimensional inner space of the nanotubes are investigated using 13C nuclear magnetic resonance spectroscopy of encapsulated fullerene molecules inside single walled carbon nanotubes. Isotope engineering and magnetically purified nanotubes have been advantageously used on our study to discriminate between the different diamagnetic and paramagnetic shifts of the resonances. Ring currents originating from the π electrons circulating on the nanotube, are found to actively screen the applied magnetic field by -36.9 ppm. Defects and holes in the nanotube walls cancel this screening locally. What is interesting, that at high magnetic fields, the modifications of the NMR resonances of the molecules from free to encapsulated can be exploited to determine some structural characteristics of the surrounding nanotubes, never observed experimentally. © 2011 Elsevier B.V. All rights reserved.en
dc.publisherElsevier BVen
dc.titleNMR strategies to study the local magnetic properties of carbon nanotubesen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalPhysica B: Condensed Matteren
dc.contributor.institutionNanoNMRI Group, UMR5587, Université Montpellier II, Place E. Bataillon, 34095, Montpellier Cedex 5, Franceen
dc.contributor.institutionDepartment of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, United Statesen
dc.contributor.institutionDepartment of Physics, Umeå University, 901 87 Umeå, Swedenen
kaust.authorAbou-Hamad, Edyen
kaust.authorBouhrara, Mohameden
kaust.authorSaih, Youssefen
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