SANS study of the aging of x TiO 2 -SiO 2 gels
作者： I. M. Miranda Salvado , F. M. A. Marga�a , J. Teixeira
DOI: 10.1007/BF00486258
关键词:
摘要: Silica-titania gels, prepared in acidic conditions, with contents of TiO2 up to 6 mol%, have been studied by small angle neutron scattering (SANS) as wet gel increasing aging times. In all samples, primary particles found a diameter about 3 nm. At the point, cylindrical clusters, ca. 10 nm long, were observed well. These grow time, becoming branched. The cluster-cluster diffusion limited aggregation model is be consistent SANS results. growth process independent content. It mainly influenced ratio time gelation time.
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