Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4081
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dc.contributor.authorKepenekçi, Özlem-
dc.contributor.authorEanes, Mehtap-
dc.contributor.authorDemir, Mustafa Mustafa-
dc.date.accessioned2014-07-25T03:25:25Z
dc.date.available2014-07-25T03:25:25Z
dc.date.issued2011-04-01en_US
dc.identifier.citationKepenekçi, Ö., Emirdağ-Eanes, M., & Demir, Mustafa M. (2011). Effect of alkali metal hydroxides on the morphological development and optical properties of ceria nanocubes under hydrothermal conditions. Journal of Nanoscience and Nanotechnology, 11(4), 3565-3577(13).en_US
dc.identifier.issn1533-4899-
dc.identifier.issn1533-4880-
dc.identifier.urihttp://dx.doi.org/10.1166/jnn.2011.3608en_US
dc.identifier.urihttp://hdl.handle.net/11147/4081
dc.description.abstractNanocrystalline cerium(IV) oxide (CeO2, ceriaceria) particles were produced via the hydrothermal treatment of cerium nitrate hexahydrate with various alkali metal hydroxides (MOH: M = Li, Na, K). Experimental conditions such as [MOH], reaction temperature, and reaction time were studied. Particle morphology as well as size of crystallites was precisely controlled by choice of experimental conditions. While rod-shaped particles were obtained at 120 C, well-defined nanocubes were formed at higher temperatures regardless of the choice of MOH. Examination of particle growth kinetics, in the final stages of crystallization, showed that particle growth rate is controlled by two different mechanisms. Grain boundary diffusion controls the particle growth in the presence of NaOH with an activation energy of 113.8 kj/mol and surface diffusion for LiOH ad KOH with the activation energy of 43.0–150.9 kj/mol, respectively. In addition, the particles exhibit strong violet and blue emissions at 400 nm and 370 nm. The former emission originates from excitation of a wide band gap of CeO2. The latter one is attributed to the trivalency of the cerium ion and appears to be sensitive to all the experimental conditions studied. Both extending reaction time and increasing temperature reduce the intensity of the 370 nm emission and increase the intensity of the 400 nm emission.en_US
dc.language.isoenen_US
dc.publisherAmerican Scientific Publishersen_US
dc.relation.ispartofJournal of Nanoscience and Nanotechnologyen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCeriaen_US
dc.subjectCrystal growthen_US
dc.subjectGrowth kineticsen_US
dc.subjectNanoparticlesen_US
dc.subjectSemiconductoren_US
dc.titleEffect of alkali metal hydroxides on the morphological development and optical properties of ceria nanocubes under hydrothermal conditionsen_US
dc.typeArticleen_US
dc.authoridTR58073en_US
dc.authoridTR130614
dc.institutionauthorEanes, Mehtap-
dc.institutionauthorDemir, Mustafa Muammer-
dc.departmentİzmir Institute of Technology. Chemistryen_US
dc.departmentİzmir Institute of Technology. Materials Science and Engineeringen_US
dc.identifier.wosWOS:000289176100109en_US
dc.identifier.scopus2-s2.0-80051921138en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1166/jnn.2011.3608-
dc.identifier.pmid21776738en_US
dc.relation.doi10.1166/jnn.2011.3608en_US
dc.coverage.doi10.1166/jnn.2011.3608en_US
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ2-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.openairetypeArticle-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections:Chemistry / Kimya
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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