Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles

Miguel A. Correa-Duarte, Marek Grzelczak, Veronica Salgueiriño-Maceira, Michael Giersig, Luis M. Liz-Marzán, Michael Farle, Karl Sierazdki, Rodolfo Diaz

Research output: Contribution to journalArticle

265 Citations (Scopus)

Abstract

The alignment of multiwalled carbon nanotubes (MWNTs) has been accomplished through deposition of uniform layers of magnetite/maghemite nanoparticles (diameter = 6-10 nm) and use of an external magnetic field. The coating of CNTs with magnetic nanoparticles was performed by combining the polymer wrapping and layer-by-layer (LbL) assembly techniques. The particle-coated MWNTs are superparamagnetic and can be aligned at room temperature on any substrate by deposition from an aqueous solution in an external field B = 0.2 T. The volume magnetization of the particle coated MWNTs is found to be enhanced by 17% compared to the pure particles in a powder indicating that either the adsorption process onto the CNTs changes the particle magnetization, or the MWNTs carry an intrinsic magnetization due to remaining Ni used as a catalyst for the growth process.

Original languageEnglish (US)
Pages (from-to)19060-19063
Number of pages4
JournalJournal of Physical Chemistry B
Volume109
Issue number41
DOIs
StatePublished - Oct 20 2005

Fingerprint

Carbon Nanotubes
Multiwalled carbon nanotubes (MWCN)
Magnetic Fields
Nanoparticles
attachment
Carbon nanotubes
carbon nanotubes
alignment
Magnetic fields
Magnetization
nanoparticles
magnetic fields
Magnetite Nanoparticles
Magnetite nanoparticles
magnetization
Powders
Adsorption
Polymers
Coatings
magnetite

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Correa-Duarte, M. A., Grzelczak, M., Salgueiriño-Maceira, V., Giersig, M., Liz-Marzán, L. M., Farle, M., ... Diaz, R. (2005). Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles. Journal of Physical Chemistry B, 109(41), 19060-19063. https://doi.org/10.1021/jp0544890

Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles. / Correa-Duarte, Miguel A.; Grzelczak, Marek; Salgueiriño-Maceira, Veronica; Giersig, Michael; Liz-Marzán, Luis M.; Farle, Michael; Sierazdki, Karl; Diaz, Rodolfo.

In: Journal of Physical Chemistry B, Vol. 109, No. 41, 20.10.2005, p. 19060-19063.

Research output: Contribution to journalArticle

Correa-Duarte, MA, Grzelczak, M, Salgueiriño-Maceira, V, Giersig, M, Liz-Marzán, LM, Farle, M, Sierazdki, K & Diaz, R 2005, 'Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles' Journal of Physical Chemistry B, vol. 109, no. 41, pp. 19060-19063. https://doi.org/10.1021/jp0544890
Correa-Duarte MA, Grzelczak M, Salgueiriño-Maceira V, Giersig M, Liz-Marzán LM, Farle M et al. Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles. Journal of Physical Chemistry B. 2005 Oct 20;109(41):19060-19063. https://doi.org/10.1021/jp0544890
Correa-Duarte, Miguel A. ; Grzelczak, Marek ; Salgueiriño-Maceira, Veronica ; Giersig, Michael ; Liz-Marzán, Luis M. ; Farle, Michael ; Sierazdki, Karl ; Diaz, Rodolfo. / Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles. In: Journal of Physical Chemistry B. 2005 ; Vol. 109, No. 41. pp. 19060-19063.
@article{668e248118ec4218b5d266e4d6bb236e,
title = "Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles",
abstract = "The alignment of multiwalled carbon nanotubes (MWNTs) has been accomplished through deposition of uniform layers of magnetite/maghemite nanoparticles (diameter = 6-10 nm) and use of an external magnetic field. The coating of CNTs with magnetic nanoparticles was performed by combining the polymer wrapping and layer-by-layer (LbL) assembly techniques. The particle-coated MWNTs are superparamagnetic and can be aligned at room temperature on any substrate by deposition from an aqueous solution in an external field B = 0.2 T. The volume magnetization of the particle coated MWNTs is found to be enhanced by 17{\%} compared to the pure particles in a powder indicating that either the adsorption process onto the CNTs changes the particle magnetization, or the MWNTs carry an intrinsic magnetization due to remaining Ni used as a catalyst for the growth process.",
author = "Correa-Duarte, {Miguel A.} and Marek Grzelczak and Veronica Salgueiri{\~n}o-Maceira and Michael Giersig and Liz-Marz{\'a}n, {Luis M.} and Michael Farle and Karl Sierazdki and Rodolfo Diaz",
year = "2005",
month = "10",
day = "20",
doi = "10.1021/jp0544890",
language = "English (US)",
volume = "109",
pages = "19060--19063",
journal = "Journal of Physical Chemistry B",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "41",

}

TY - JOUR

T1 - Alignment of carbon nanotubes under low magnetic fields through attachment of magnetic nanoparticles

AU - Correa-Duarte, Miguel A.

AU - Grzelczak, Marek

AU - Salgueiriño-Maceira, Veronica

AU - Giersig, Michael

AU - Liz-Marzán, Luis M.

AU - Farle, Michael

AU - Sierazdki, Karl

AU - Diaz, Rodolfo

PY - 2005/10/20

Y1 - 2005/10/20

N2 - The alignment of multiwalled carbon nanotubes (MWNTs) has been accomplished through deposition of uniform layers of magnetite/maghemite nanoparticles (diameter = 6-10 nm) and use of an external magnetic field. The coating of CNTs with magnetic nanoparticles was performed by combining the polymer wrapping and layer-by-layer (LbL) assembly techniques. The particle-coated MWNTs are superparamagnetic and can be aligned at room temperature on any substrate by deposition from an aqueous solution in an external field B = 0.2 T. The volume magnetization of the particle coated MWNTs is found to be enhanced by 17% compared to the pure particles in a powder indicating that either the adsorption process onto the CNTs changes the particle magnetization, or the MWNTs carry an intrinsic magnetization due to remaining Ni used as a catalyst for the growth process.

AB - The alignment of multiwalled carbon nanotubes (MWNTs) has been accomplished through deposition of uniform layers of magnetite/maghemite nanoparticles (diameter = 6-10 nm) and use of an external magnetic field. The coating of CNTs with magnetic nanoparticles was performed by combining the polymer wrapping and layer-by-layer (LbL) assembly techniques. The particle-coated MWNTs are superparamagnetic and can be aligned at room temperature on any substrate by deposition from an aqueous solution in an external field B = 0.2 T. The volume magnetization of the particle coated MWNTs is found to be enhanced by 17% compared to the pure particles in a powder indicating that either the adsorption process onto the CNTs changes the particle magnetization, or the MWNTs carry an intrinsic magnetization due to remaining Ni used as a catalyst for the growth process.

UR - http://www.scopus.com/inward/record.url?scp=27544454104&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27544454104&partnerID=8YFLogxK

U2 - 10.1021/jp0544890

DO - 10.1021/jp0544890

M3 - Article

VL - 109

SP - 19060

EP - 19063

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 41

ER -