Innovative Coating Method of MgAl2O4 or ZnAl2O4 on α-Al2O3 Spheric Nuclei

dc.creatorBaez, Graciela Mabel
dc.creatorScelza, Osvaldo Antonio
dc.creatorde Miguel, Sergio Ruben
dc.creatorBocanegra, Sonia Alejandra
dc.date.accessioned2018-02-21T20:24:33Z
dc.date.accessioned2018-11-06T13:15:43Z
dc.date.available2018-02-21T20:24:33Z
dc.date.available2018-11-06T13:15:43Z
dc.date.created2018-02-21T20:24:33Z
dc.date.issued2015-04
dc.identifierBaez, Graciela Mabel; Scelza, Osvaldo Antonio; de Miguel, Sergio Ruben; Bocanegra, Sonia Alejandra; Innovative Coating Method of MgAl2O4 or ZnAl2O4 on α-Al2O3 Spheric Nuclei; Universidade Federal de São Carlos; Materials Research; 18; 2; 4-2015; 404-410
dc.identifier1516-1439
dc.identifierhttp://hdl.handle.net/11336/36919
dc.identifier1980-5373
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1873548
dc.description.abstractStructured materials composed of α-Al2O3 spheres covered with a porous and thin layer of MgAl2O4 or ZnAl2O4 were obtained. The innovative coating method developed consists in the formation of a precursor gel of MgAl2O4 or ZnAl2O4 by citrate-nitrate combustion method. The alumina spheres are submerged in this gel and then submitted to a drying process in vacuum and to calcinations with N2 and N2/O2. SEM results showed that a very rough and porous layer uniformly covers the spheres. The thickness of the layer reaches the maximum value of 16 µm in the sample coated with two layers of ZnAl2O4. XRD results confirmed the MgAl2O4 or ZnAl2O4 spinel formation in the layered material. The structured materials were used as Pt catalysts supports, showing a good catalytic activity in the n-butane dehydrogenation reaction.
dc.languageeng
dc.publisherUniversidade Federal de São Carlos
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1590/1516-1439.344014
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/pqpwh8
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCHEMICAL SYNTHESIS
dc.subjectELECTRON MICROSCOPY
dc.subjectX-RAY DIFFRACTION
dc.subjectCATALYTIC PROPERTIES
dc.subjectthin films
dc.titleInnovative Coating Method of MgAl2O4 or ZnAl2O4 on α-Al2O3 Spheric Nuclei
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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