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RESEARCH PRODUCT

TiO2 nanostructures prepared by ferrocene/cobalt catalyst agents

Juan Carlos CaicedoA. M. LazarA. M. LazarDenis ChaumontM. SacilottiMaría Elena Pardo GómezYvon LacrouteGustavo Zambrano

subject

AnataseNanostructureMaterials sciencechemistry.chemical_elementNanotechnologySurfaces and InterfacesCondensed Matter PhysicsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCatalysischemistry.chemical_compoundChemical engineeringchemistryFerroceneNanocrystalRutileMaterials ChemistryGrain boundaryElectrical and Electronic EngineeringCobalt

description

We present the growth and characterization of TiO2 nanocrystals. Nanostructured growth is obtained in a low-pressure CVD system by using an organometallic precursor Ti(OC3H7)4 as both the Ti and O source catalyzed by both ferrocene (an organometallic precursor) and cobalt metallic clusters prepared by the microwave-assisted polyol method. Two kinds of TiO2 structures were obtained in the cobalt clusters: a) pine-tree like (with short-leaf structure) and b) long-leaf structures as large as a few micrometers in size and both under 10 nm in thickness. Long-leaf TiO2 structures were grown at cobalt grain boundaries. For the growth conditions utilized, the TiO2 structures are composed of both anatase and rutile crystallographic phases. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

https://doi.org/10.1002/pssa.200723134