Production and characterization of CuCrO2 nanofibers

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dc.contributor.authorCetin, Cagla
dc.contributor.authorAkyildiz, Hasan
dc.date.accessioned2020-03-26T19:25:49Z
dc.date.available2020-03-26T19:25:49Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractComposite nanofibers were prepared from homogeneously mixed copper chloride, chromium nitrate and polyvinylpyrrolidone solution by electrospinning and were subsequently heat treated under isochronal and isothermal annealing conditions. In the isochronal experiments, CuCrO2 formation began at 773 K. Annealing at 973 K yielded single-phase, highly porous CuCrO2 nanofibers accompanied by the formation of large quasi-hexagonal grains. In contrast, isothermal annealing at 973 K resulted in the formation of phase-pure CuCrO2 nanofibers with belt-like morphology and relatively higher density. A substantial decrease was observed in the size and number of plate-like grains in these nanofibers. When the fibers were annealed isothermally at 973 K for 1 h, the average width and specific surface area of the synthesized fibers were 150 nm and 7.85 m(2) g(-1), respectively, and the direct bandgap was 2.82 eV. The CuCrO2 behaved like a semiconductor, and the thermally activated energy was approximately 0.157 eV. A simple formation mechanism was proposed for the quasi-hexagonal grains. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific Research Foundation (BAP) of Selcuk UniversitySelcuk University [15201028]; TUBITAK MAGTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [214M410]en_US
dc.description.sponsorshipSupport for this work is provided by the Scientific Research Foundation (BAP) of Selcuk University (Project number 15201028) and TUBITAK MAG (Project number 214M410) which authors gratefully acknowledge. We would also like to thank Dr. M. Selman Yavuz for his technical support.en_US
dc.identifier.doi10.1016/j.matchemphys.2015.12.031en_US
dc.identifier.endpage144en_US
dc.identifier.issn0254-0584en_US
dc.identifier.issn1879-3312en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage138en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.matchemphys.2015.12.031
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33909
dc.identifier.volume170en_US
dc.identifier.wosWOS:000369473600019en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.relation.ispartofMATERIALS CHEMISTRY AND PHYSICSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectSemiconductorsen_US
dc.subjectAnnealingen_US
dc.subjectPowder diffractionen_US
dc.subjectElectron microscopyen_US
dc.titleProduction and characterization of CuCrO2 nanofibersen_US
dc.typeArticleen_US

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