Surface ionic states and structure of titanate nanotubes

buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481en_US
dc.citation.epage82982en_US
dc.citation.issueNumber101en_US
dc.citation.spage82977en_US
dc.citation.volumeNumber5en_US
dc.contributor.authorVempati S.en_US
dc.contributor.authorKayaci-Senirmak, F.en_US
dc.contributor.authorOzgit Akgun, C.en_US
dc.contributor.authorBıyıklı, Necmien_US
dc.contributor.authorUyar, Tameren_US
dc.contributor.bilkentauthorUyar, Tamer
dc.contributor.bilkentauthorBıyıklı, Necmi
dc.date.accessioned2016-02-08T09:38:50Z
dc.date.available2016-02-08T09:38:50Z
dc.date.issued2015en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractHere we present an investigation on Zn-Ti-O ternary (zinc titanate) nanostructures which were prepared by a combination of electrospinning and atomic layer deposition. Depending on the ZnO and TiO2 molar ratio, two titanates and one mix phased compound were synthesized by varying the post-annealing temperatures. Specifically Zn2TiO4, ZnTiO3 and ZnO/TiO2 nanostructures were fabricated via thermal treatments (900, 700, 800 °C, respectively). Structural studies unveiled the titanate phase of the nanostructures. Furthermore, the ionic states of the titanate nanostructures on the surface are revealed to be Ti3+ and Zn2+. Spin-orbit splitting of Zn2p and Ti2p doublets were, however, not identical for all titanates which vary from 23.09-23.10 eV and 5.67-5.69 eV respectively. Oxygen vacancies were found on the surface of all titanates. The valance band region was analyzed for Zn3d, Ti3p, O2s and O2p and their hybridization, while the edge (below Fermi level) was determined to be at 2.14 eV, 2.00 eV and 1.99 eV for Zn2TiO4, ZnTiO3 and ZnO/TiO2 respectively.en_US
dc.identifier.doi10.1039/c5ra14323cen_US
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/11693/20970
dc.language.isoEnglishen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/c5ra14323cen_US
dc.source.titleRSC Advancesen_US
dc.subjectAnnealingen_US
dc.subjectAtomic layer depositionen_US
dc.subjectNanostructuresen_US
dc.subjectOxygen vacanciesen_US
dc.subjectYarnen_US
dc.subjectZincen_US
dc.subjectZinc oxideen_US
dc.subjectIonic stateen_US
dc.subjectMolar ratioen_US
dc.subjectPost-annealing temperatureen_US
dc.subjectSpin-orbit splittingsen_US
dc.subjectStructural studiesen_US
dc.subjectTitanate nanotubesen_US
dc.subjectValance bandsen_US
dc.subjectZinc titanateen_US
dc.subjectTitanium compoundsen_US
dc.titleSurface ionic states and structure of titanate nanotubesen_US
dc.typeArticleen_US
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