Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes

Elok Fidiani; Pedro M. F. J. Da Costa; Anja U. B. Wolter; Diana Maier; Bernd Buechner; Silke Hampel

doi:10.1021/jp405768p

Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes

Elok Fidiani, Pedro M. F. J. Da Costa, Anja U. B. Wolter, Diana Maier, Bernd Buechner, Silke Hampel

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Gd-filled carbon nanotubes (which include the so-called gadonanotubes(1)) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of 50% were obtained. Cleaning and dosing of the external walls was undertaken, as well as the study of the filled CNT magnetic properties. Overall, we found that the encapsulating procedure can lead to reduction of the lanthanide metal and induce disorder in the initial GdI3-type structure. Notwithstanding, the magnetic response of the material is not compromised, retaining a strong paramagnetic response and an effective magnetic moment of similar to 6 mu B. Our results may entice further investigation into whether an analogous Gd3+ to Gd2+ reduction takes place in other Gd-filled CNT systems.

Original language	English (US)
Pages (from-to)	16725-16733
Number of pages	9
Journal	The Journal of Physical Chemistry C
Volume	117
Issue number	32
DOIs	https://doi.org/10.1021/jp405768p
State	Published - Aug 2 2013
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: PMFJC and SH are grateful for a bilateral DAAD-FCT project; PMFJC acknowledges an Alexander von Humboldt Foundation Fellowship for Experienced Researchers and funding from the FCT grant PTDC/CTM/100468/2008

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title = "Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes",

abstract = "Gd-filled carbon nanotubes (which include the so-called gadonanotubes(1)) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of 50% were obtained. Cleaning and dosing of the external walls was undertaken, as well as the study of the filled CNT magnetic properties. Overall, we found that the encapsulating procedure can lead to reduction of the lanthanide metal and induce disorder in the initial GdI3-type structure. Notwithstanding, the magnetic response of the material is not compromised, retaining a strong paramagnetic response and an effective magnetic moment of similar to 6 mu B. Our results may entice further investigation into whether an analogous Gd3+ to Gd2+ reduction takes place in other Gd-filled CNT systems.",

author = "Elok Fidiani and {Da Costa}, {Pedro M. F. J.} and Wolter, {Anja U. B.} and Diana Maier and Bernd Buechner and Silke Hampel",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: PMFJC and SH are grateful for a bilateral DAAD-FCT project; PMFJC acknowledges an Alexander von Humboldt Foundation Fellowship for Experienced Researchers and funding from the FCT grant PTDC/CTM/100468/2008",

year = "2013",

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doi = "10.1021/jp405768p",

language = "English (US)",

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T1 - Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes

AU - Fidiani, Elok

AU - Da Costa, Pedro M. F. J.

AU - Wolter, Anja U. B.

AU - Maier, Diana

AU - Buechner, Bernd

AU - Hampel, Silke

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: PMFJC and SH are grateful for a bilateral DAAD-FCT project; PMFJC acknowledges an Alexander von Humboldt Foundation Fellowship for Experienced Researchers and funding from the FCT grant PTDC/CTM/100468/2008

PY - 2013/8/2

Y1 - 2013/8/2

N2 - Gd-filled carbon nanotubes (which include the so-called gadonanotubes(1)) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of 50% were obtained. Cleaning and dosing of the external walls was undertaken, as well as the study of the filled CNT magnetic properties. Overall, we found that the encapsulating procedure can lead to reduction of the lanthanide metal and induce disorder in the initial GdI3-type structure. Notwithstanding, the magnetic response of the material is not compromised, retaining a strong paramagnetic response and an effective magnetic moment of similar to 6 mu B. Our results may entice further investigation into whether an analogous Gd3+ to Gd2+ reduction takes place in other Gd-filled CNT systems.

AB - Gd-filled carbon nanotubes (which include the so-called gadonanotubes(1)) have been attracting much interest due to their potential use in medical diagnostic applications. In the present work, a vacuum filling method was performed to confine gadolinium(III) iodide in carbon nanotubes (CNTs). Filling yields in excess of 50% were obtained. Cleaning and dosing of the external walls was undertaken, as well as the study of the filled CNT magnetic properties. Overall, we found that the encapsulating procedure can lead to reduction of the lanthanide metal and induce disorder in the initial GdI3-type structure. Notwithstanding, the magnetic response of the material is not compromised, retaining a strong paramagnetic response and an effective magnetic moment of similar to 6 mu B. Our results may entice further investigation into whether an analogous Gd3+ to Gd2+ reduction takes place in other Gd-filled CNT systems.

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U2 - 10.1021/jp405768p

DO - 10.1021/jp405768p

M3 - Article

SN - 1932-7447

VL - 117

SP - 16725

EP - 16733

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

IS - 32

ER -

Magnetically Active and Coated Gadolinium-Filled Carbon Nanotubes

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