Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles

Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles

Multiwalled carbon nanotubes (MWCNTs) synthesized by spray pyrolysis were decorated with cobalt oxide nanoparticles using a simple synthesis route. This wet chemistry method yielded nanoparticles randomly anchored to the surface of the nanotubes by decomposition of cobalt nitrate hexahydrate diluted...

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Main Authors: D. G. Larrude, P. Ayala, M. E. H. Maia da Costa, F. L. Freire
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2012/695453
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spelling doaj-aee876ce8bd84cc6b2d3e63f4413a1652020-11-24T22:29:40ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292012-01-01201210.1155/2012/695453695453Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide NanoparticlesD. G. Larrude0P. Ayala1M. E. H. Maia da Costa2F. L. Freire3Departmento de Física, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, BrazilFaculty of Theoretical Physics, University of Vienna, Strudlhofgaβe 4, A-1090, Vienna, AustriaDepartmento de Física, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, BrazilDepartmento de Física, Pontifícia Universidade Católica do Rio de Janeiro, 22451-900 Rio de Janeiro, RJ, BrazilMultiwalled carbon nanotubes (MWCNTs) synthesized by spray pyrolysis were decorated with cobalt oxide nanoparticles using a simple synthesis route. This wet chemistry method yielded nanoparticles randomly anchored to the surface of the nanotubes by decomposition of cobalt nitrate hexahydrate diluted in acetone. Electron microscopy analysis indicated that dispersed particles were formed on the MWCNTs walls. The average size increased with the increasing concentration of cobalt nitrate in acetone in the precursor mixture. TEM images indicated that nanoparticles were strongly attached to the tube walls. The Raman spectroscopy results suggested that the MWCNT structure was slightly damaged after the nanoparticle growth.http://dx.doi.org/10.1155/2012/695453
collection DOAJ
language English
format Article
sources DOAJ
author D. G. Larrude
P. Ayala
M. E. H. Maia da Costa
F. L. Freire
spellingShingle D. G. Larrude
P. Ayala
M. E. H. Maia da Costa
F. L. Freire
Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
Journal of Nanomaterials
author_facet D. G. Larrude
P. Ayala
M. E. H. Maia da Costa
F. L. Freire
author_sort D. G. Larrude
title Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
title_short Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
title_full Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
title_fullStr Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
title_full_unstemmed Multiwalled Carbon Nanotubes Decorated with Cobalt Oxide Nanoparticles
title_sort multiwalled carbon nanotubes decorated with cobalt oxide nanoparticles
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2012-01-01
description Multiwalled carbon nanotubes (MWCNTs) synthesized by spray pyrolysis were decorated with cobalt oxide nanoparticles using a simple synthesis route. This wet chemistry method yielded nanoparticles randomly anchored to the surface of the nanotubes by decomposition of cobalt nitrate hexahydrate diluted in acetone. Electron microscopy analysis indicated that dispersed particles were formed on the MWCNTs walls. The average size increased with the increasing concentration of cobalt nitrate in acetone in the precursor mixture. TEM images indicated that nanoparticles were strongly attached to the tube walls. The Raman spectroscopy results suggested that the MWCNT structure was slightly damaged after the nanoparticle growth.
url http://dx.doi.org/10.1155/2012/695453
work_keys_str_mv AT dglarrude multiwalledcarbonnanotubesdecoratedwithcobaltoxidenanoparticles
AT payala multiwalledcarbonnanotubesdecoratedwithcobaltoxidenanoparticles
AT mehmaiadacosta multiwalledcarbonnanotubesdecoratedwithcobaltoxidenanoparticles
AT flfreire multiwalledcarbonnanotubesdecoratedwithcobaltoxidenanoparticles
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