Study of crystallite size and strain as a function of morphological evolution in zinc oxide powder obtained from hydroxycarbonate precursor

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSigoli, Fernando Aparecido
dc.creatorDe Oliveira Paiva-Santos, Carlos
dc.creatorJafelicci Júnior, Miguel
dc.creatorDavolos, Marian Rosaly
dc.date2014-05-27T11:20:18Z
dc.date2016-10-25T18:17:09Z
dc.date2014-05-27T11:20:18Z
dc.date2016-10-25T18:17:09Z
dc.date2001-09-01
dc.date.accessioned2017-04-06T01:00:00Z
dc.date.available2017-04-06T01:00:00Z
dc.identifierPowder Diffraction, v. 16, n. 3, p. 153-159, 2001.
dc.identifier0885-7156
dc.identifier1945-7413
dc.identifierhttp://hdl.handle.net/11449/66574
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66574
dc.identifier10.1154/1.1376706
dc.identifierWOS:000171122400004
dc.identifier2-s2.0-0035458229.pdf
dc.identifier2-s2.0-0035458229
dc.identifierhttp://dx.doi.org/10.1154/1.1376706
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888122
dc.descriptionIn this work, zinc oxide samples were obtained from hydroxycarbonate by thermal decomposition at 300°C. Zinc hydroxycarbonate samples were produced by homogeneous precipitation over different periods of time. The method used to obtain zinc oxide produces different morphologies as a function of the precursor precipitation time. Among the obtained particle shapes were porous spherical aggregates, spherulitic needle aggregates, and single acicular particles. This work investigated spherulitic needle-aggregate formation and the correlation among morphology, domain size, and microstrain. Transmission electron microscopy data revealed that the acicular particles that form the spherulitic needle aggregates consist of nanometer crystallites. Apparent crystallite size and microstrain in the directions perpendicular to (h00), (h0l), (hk0), and (00l) planes were invariable as a function of precursor precipitation time. From the results, it was possible to conclude that the precursor precipitation period directly influenced the morphology of the zinc oxide but did not influence average crystallite size and microstrain for ZnO samples. Therefore, using this route, it was possible to prepare zinc oxide with different morphologies without microstructural alterations. © 2001 International Centre for Diffraction Data.
dc.languageeng
dc.relationPowder Diffraction
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCrystallite size
dc.subjectMorphology
dc.subjectStrain
dc.subjectZinc oxide
dc.titleStudy of crystallite size and strain as a function of morphological evolution in zinc oxide powder obtained from hydroxycarbonate precursor
dc.typeOtro


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