Structure and kinetics of formation of APTS/GPTS-derived organic/inorganic hybrids

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAwano, Carlos M.
dc.creatorDonatti, Dario A.
dc.creatorDe Vicente, Fabio S.
dc.creatorVollet, Dimas R.
dc.date2014-05-27T11:30:30Z
dc.date2016-10-25T18:53:02Z
dc.date2014-05-27T11:30:30Z
dc.date2016-10-25T18:53:02Z
dc.date2013-08-29
dc.date.accessioned2017-04-06T02:36:23Z
dc.date.available2017-04-06T02:36:23Z
dc.identifierJournal of Physical Chemistry C, v. 117, n. 34, p. 17839-17844, 2013.
dc.identifier1932-7447
dc.identifier1932-7455
dc.identifierhttp://hdl.handle.net/11449/76356
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76356
dc.identifier10.1021/jp406111w
dc.identifierWOS:000323917300054
dc.identifier2-s2.0-84883437819
dc.identifierhttp://dx.doi.org/10.1021/jp406111w
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/897056
dc.descriptionThe structure and the kinetics of formation of APTS/GPTS-derived organic/inorganic hybrids were studied in situ by small-angle-X-ray scattering. The data were interpreted in terms of a process of primary particles formation and growth of mass-fractal clusters. At the very early stage, the population of the nonfractal primary particles (D = 3) increases with time. As the mass-fractal clusters appear (D < 3) as a result of the aggregation process, the radius of gyration, Rg, of the clusters increases on average. At advanced stages of aggregation, the clusters grow in a mechanism in which the number of particles per clusters increases while the number of clusters diminishes with time, in such a way that the correlation volume of the clusters, Vc, fulfills the relationship Vc â̂ R g D, in agreement with a mass-fractal character of the clusters. These results supporting a cluster-cluster aggregation process, together with the typically very low value found for the mass-fractal dimension D, are in favor of a diffusion-controlled cluster aggregation mechanism. © 2013 American Chemical Society.
dc.languageeng
dc.relationJournal of Physical Chemistry C
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAggregation process
dc.subjectCluster aggregation
dc.subjectCluster-cluster aggregation
dc.subjectDiffusion-controlled
dc.subjectNumber of clusters
dc.subjectOrganic/Inorganic hybrids
dc.subjectPrimary particles
dc.subjectRadius of gyration
dc.subjectFractal dimension
dc.subjectAgglomeration
dc.titleStructure and kinetics of formation of APTS/GPTS-derived organic/inorganic hybrids
dc.typeOtro


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