Role of aluminum doping on phase transformations in nanoporous titania anodic oxides

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dc.authoridUrgen, Mustafa/0000-0003-3549-0049|Bayata, Fatma/0000-0003-4129-8838
dc.authorwosidUrgen, Mustafa/D-5422-2014
dc.contributor.authorBayata, Fatma
dc.contributor.authorUrgen, Mustafa
dc.date.accessioned2024-07-18T20:42:45Z
dc.date.available2024-07-18T20:42:45Z
dc.date.issued2015
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractThe role of aluminium doping on anatase to rutile phase transformation of nanoporous titanium oxide films were investigated. For this purpose pure and aluminum doped metal films were deposited on alumina substrates by cathodic arc physical deposition. The nanoporous anodic oxides were prepared by porous anodizing of pure and aluminum doped titanium metallic films in an ethylene glycol + NH4F based electrolyte. Nanoporous amorphous structures with 60-80 nm diameter and 2-4 mm length were formed on the surfaces of alumina substrates. The amorphous undoped and Al-doped TiO2 anodic oxides were heat-treated at different temperatures in the range of 280-720 degrees C for the investigation of their crystallization behavior. The combined effects of nanoporous structure and Al doping on crystallization behavior of titania were investigated using X-ray diffraction (XRD) and micro Raman analysis. The results indicated that both Al ions incorporated into the TiO2 structure and the nanoporous structure retarded the rutile formation. It was also revealed that presence or absence of metallic film underneath the nanopores has a major contribution to anatase-rutile transformation. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [110M745]en_US
dc.description.sponsorshipThis work was funded by the Scientific and Technological Research Council of Turkey (TUBITAK), Project Numbers: 110M745. The authors gratefully acknowledge Prof. Dr. Gultekin Goller, Talat Alpak, Sevgin Turkeli for SEM and XRD investigatio.en_US
dc.identifier.doi10.1016/j.jallcom.2015.06.054
dc.identifier.endpage726en_US
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-84935495534en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage719en_US
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2015.06.054
dc.identifier.urihttps://hdl.handle.net/11411/7403
dc.identifier.volume646en_US
dc.identifier.wosWOS:000361153700107en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAluminum Doped Titaniaen_US
dc.subjectNanoporous Titanium Anodic Oxideen_US
dc.subjectAnatase To Rutile Phase Transformationen_US
dc.subjectTio2 Nanotube Arraysen_US
dc.subjectGas Sensoren_US
dc.subjectRutile Transformationen_US
dc.subjectAnataseen_US
dc.subjectAlen_US
dc.subjectSurfaceen_US
dc.subjectFilmsen_US
dc.subjectFabricationen_US
dc.subjectRamanen_US
dc.subjectNanopowdersen_US
dc.titleRole of aluminum doping on phase transformations in nanoporous titania anodic oxides
dc.typeArticle

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