Influence of Fe and Al doping in the stabilization of
the anatase phase in TiO_2 nanoparticles

Vásquez, G. Cristian; Peche-Herrero, Andrea; Maestre Varea, David; Alemán Llorente, Belén; Ramirez-Castellanos, Julio; Cremades Rodríguez, Ana Isabel; Gonzalez-Calbet, José M.; Piqueras De Noriega, Francisco Javier

Influence of Fe and Al doping in the stabilization of the anatase phase in TiO_2 nanoparticles

dc.contributor.author	Vásquez, G. Cristian
dc.contributor.author	Peche-Herrero, Andrea
dc.contributor.author	Maestre Varea, David
dc.contributor.author	Alemán Llorente, Belén
dc.contributor.author	Ramirez-Castellanos, Julio
dc.contributor.author	Cremades Rodríguez, Ana Isabel
dc.contributor.author	Gonzalez-Calbet, José M.
dc.contributor.author	Piqueras De Noriega, Francisco Javier
dc.date.accessioned	2023-06-19T14:56:29Z
dc.date.available	2023-06-19T14:56:29Z
dc.date.issued	2014
dc.description	© The Royal Society of Chemistry 2012. This work was supported by MINECO (Projects MAT2011-23068, MAT 2012-31959 and Consolider Ingenio CSD 2009-00013). Authors are grateful to National Centre for Electron Microscopy (CNME) at Universidad Complutense de Madrid.
dc.description.abstract	Anatase TiO_2 nanoparticles doped with Al or Fe have been synthesized via a modified Pechini method which allows to reach high control in size and composition. Microstructural analysis onfirms the good crystallinity of the doped anatase nanoparticles with average sizes around 5 nm and dopant cationic concentrations up to 30 %. Anatase to rutile transition (ART) has been thermally driven and analyzed as a function of the doping. Thermo-diffraction measurements indicate that the phase transition can be either promoted or inhibited by Fe or Al doping, respectively. The influence of Al and Fe doping in the phase transition has been discussed by means of Raman spectroscopy, Photoluminescence and X-ray Photoelectron spectroscopy, with special attention paid to the role played by Ti^(3+) at the surface. Anatase phase has been stabilized up to temperatures above 900 ºC by appropriate Al doping
dc.description.department	Depto. de Física de Materiales
dc.description.faculty	Fac. de Ciencias Físicas
dc.description.refereed	TRUE
dc.description.sponsorship	Ministerio de Economía y Competitividad (MINECO)
dc.description.status	pub
dc.eprint.id	https://eprints.ucm.es/id/eprint/33343
dc.identifier.doi	10.1039/c4tc02099e
dc.identifier.issn	2050-7526
dc.identifier.officialurl	http://dx.doi.org/10.1039/c4tc02099e
dc.identifier.relatedurl	http://pubs.rsc.org/
dc.identifier.uri	https://hdl.handle.net/20.500.14352/34883
dc.issue.number	48
dc.journal.title	Journal of materials chemistry C
dc.language.iso	eng
dc.page.final	10385
dc.page.initial	10377
dc.publisher	Royal Soc. Chemistry
dc.relation.projectID	MAT2011-23068
dc.relation.projectID	MAT 2012-31959
dc.relation.projectID	Consolider Ingenio CSD 2009-00013
dc.rights.accessRights	restricted access
dc.subject.cdu	538.9
dc.subject.keyword	Rutile
dc.subject.keyword	Photoluminescence
dc.subject.keyword	Transformation
dc.subject.keyword	Spectroscopy
dc.subject.keyword	Transition
dc.subject.keyword	Electrodes
dc.subject.keyword	Dependence
dc.subject.keyword	Particles
dc.subject.keyword	Oxidation
dc.subject.keyword	Dioxide
dc.subject.ucm	Física de materiales
dc.subject.ucm	Física del estado sólido
dc.subject.unesco	2211 Física del Estado Sólido
dc.title	Influence of Fe and Al doping in the stabilization of the anatase phase in TiO_2 nanoparticles
dc.type	journal article
dc.volume.number	2
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