Effects of dependence between solid solution and surface excess in nanoparticles

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dc.contributor.authorPereira G.J.
dc.contributor.authorGouvea D.
dc.date.accessioned2019-08-20T00:17:42Z
dc.date.available2019-08-20T00:17:42Z
dc.date.issued2010
dc.description.abstractIn this work, samples of 10 mol% Mg-doped SnO2 were synthesized by Pechini's method and calcined at 500°C. Previous analysis suggests that the additive is preferentially located on the surface of nanoparticles as a surface excess. Since MgO is highly soluble even in weak acid medium, the samples were "washed" with concentrated nitric acid for a few hours in order to remove Mg from the surface. After the lixiviation, the sample was thermally treated again. This procedure was carried out five times using the same sample, and the dependence between macroscopic properties and surface excess was demonstrated, since it was detected a direct relationship on particle size and isoelectric point on each new washing. Also, a new method to measure surface excess in solids was applied. © (2010) Trans Tech Publications.
dc.description.firstpage995
dc.description.lastpage1000
dc.description.volume660-661
dc.identifier.citationPEREIRA, G. J.;Pereira, Gilberto J.;PEREIRA, GILBERTO JOSÉ; Gouvea, Douglas. Effects of Dependence between Solid Solution and Surface Excess in Nanoparticles. Materials Science Forum (Online), v. 660-661, p. 995-1000, 2010.
dc.identifier.doi10.4028/www.scientific.net/MSF.660-661.995
dc.identifier.issn1662-9752
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/2367
dc.relation.ispartofMaterials Science Forum
dc.rightsAcesso Restrito
dc.subject.otherlanguagePechini
dc.subject.otherlanguageSurface excess
dc.subject.otherlanguageSynthesis
dc.titleEffects of dependence between solid solution and surface excess in nanoparticles
dc.typeArtigo de evento
fei.scopus.citations1
fei.scopus.eid2-s2.0-78649962858
fei.scopus.subjectConcentrated nitric acid
fei.scopus.subjectIso-electric points
fei.scopus.subjectMacroscopic properties
fei.scopus.subjectMg-doping
fei.scopus.subjectPechini
fei.scopus.subjectPechini's methods
fei.scopus.subjectSurface excess
fei.scopus.subjectWeak acids
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78649962858&origin=inward
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