One-pot electrosynthesis of multi-layered magnetic metallopolymer nanocomposites
Özkale, Berna (Institute of Robotics and Intelligent Systems (Zurich, Suïssa))
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física)
Zeeshan, M. Arif (Institute of Robotics and Intelligent Systems)
López-Barbera, José Francisco (Institut Català de Nanociència i Nanotecnologia)
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Nelson, Bradley J. (ETH Zurich. Multi-Scale Robotics Laboratory)
Pané i Vidal, Salvador (Institute of Robotics and Intelligent Systems (Zurich, Suïssa))

Fecha:	2014
Resumen:	Researchers have been investigating various methodologies for fabricating well-defined, homogenous composites consisting of nanoparticles (NPs) dispersed in a matrix. The main challenges are to prevent particle agglomerations during fabrication and to obtain nanoparticles whose size distribution could be tuned on demand. One of the methods that can provide these features is electrodeposition. We report for the first time the fabrication of a thin magnetic multilayer nanocomposite film by electrodeposition from one bath containing both a monomer and metal salts. Cobalt and cobalt-nickel NPs were deposited on conductive polymer polypyrrole thin films using different electrodeposition potentials and times. Multilayer nanocomposite films were fabricated by subsequent electrodeposition of polymer and nanoparticle layers. Scanning electron microscopy analysis showed that a wide range of NPs (70-230 nm) could be synthesized by manipulating growth potentials and times. The cobalt-nickel NPs were found to contain hexagonal close-packed (hcp) and face-centered cubic (fcc) phases based on X-ray diffraction and selected area electron diffraction. Magnetic measurements proved that both the single and the multi-layered nanocomposites were magnetic at room temperature.
Ayudas:	Ministerio de Economía y Competitividad RYC-2012-10023 Ministerio de Economía y Competitividad MAT2011-27380-C02-01 Ministerio de Economía y Competitividad MAT2010-20616-C02 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-1292
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Publicado en:	Nanoscale, Vol. 6 (2014) , p. 4683-4690, ISSN 2040-3372

DOI: 10.1039/C3NR06131K

Postprint 8 p, 953.2 KB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Grupo de nanoingeniería de materiales, nanomagnetismo y nanomecánica (Gnm3)
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > Institut Català de Nanociència i Nanotecnologia (ICN2)
Artículos > Artículos de investigación
Artículos > Artículos publicados