Crystal growth through progressive densification identified by synchrotron small-angle x-ray scattering

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dc.contributor.authorLi, Jen_AU
dc.contributor.authorCookson, DJen_AU
dc.contributor.authorGerson, ARen_AU
dc.date.accessioned2008-08-19T04:31:08Zen_AU
dc.date.accessioned2010-04-30T05:05:56Zen_AU
dc.date.available2008-08-19T04:31:08Zen_AU
dc.date.available2010-04-30T05:05:56Zen_AU
dc.date.issued2008-05en_AU
dc.date.statistics2008-05en_AU
dc.description.abstractFor the first time, evolution of the interfacial structure of aluminum hydroxide nuclei forming within concentrated caustic solutions has been examined in situ in real time. In both dilute and concentrated caustic aluminate solutions (NaOH = 1.0 and 3.0 M, respectively, [NaOH]/[Al] = 1.22), the measured synchrotron small-angle X-ray scattering data indicate distinctly different surface structures throughout the maturation process. In the dilute solution, the data are consistent with a thin layer of less dense, recently accreted material on the surface of large fully dense particles-consistent with the familiar model process of species attachment to well-faceted surfaces. In contrast to this, the data for the concentrated solution are consistent with large diffuse particles growing with a mass fractal dimension of approximately 2.5 which density to form rough surface fractal particles on maturation. This unusual densification crystallization mechanism may occur in analogous concentrated systems where the fractal structures may be entropically stablized. © 2008, American Chemical Societyen_AU
dc.identifier.citationLi, J., Cookson, D. J., & Gerson, A. R. (2008). Crystal growth through progressive densification identified by synchrotron small-angle x-ray scattering. Crystal Growth & Design, 8(5), 1730-1733. doi:10.1021%2Fcg700788nen_AU
dc.identifier.govdoc1382en_AU
dc.identifier.issn1528-7483en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleCrystal Growth & Designen_AU
dc.identifier.pagination1730-1733en_AU
dc.identifier.urihttp://dx.doi.org/10.1021%2Fcg700788nen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1190en_AU
dc.identifier.volume8en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectAluminium chloridesen_AU
dc.subjectSynthetic materialsen_AU
dc.subjectAqueous solutionsen_AU
dc.subjectSilicaen_AU
dc.subjectAlkoxidesen_AU
dc.subjectPolymersen_AU
dc.subjectCrystallizationen_AU
dc.subjectCrystal growthen_AU
dc.subjectHydrolysisen_AU
dc.subjectNucleationen_AU
dc.titleCrystal growth through progressive densification identified by synchrotron small-angle x-ray scatteringen_AU
dc.typeJournal Articleen_AU
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