Rf. De Farias et C. Airoldi, Spherical particles of zirconia-titania of hexagonal structure from a neutral amine route, J COLL I SC, 220(2), 1999, pp. 255-259
Through the sol-gel process, using the so-called neutral amine route, spher
ical particles of 1:1 zirconia-titania were synthesized from zirconium(IV)
and titanium(IV) butoxides as well as 1,12-diaminododecane as precursor spe
cies. The obtained product exhibited a hexagonal structure, as determinated
by X-ray diffraction data. The obtained material was also characterized by
thermogravimetry, differential scanning calorimetry, infrared spectroscopy
, scanning electron microscopy, and surface area measurements. Despite the
release of template molecules on heating, the spherical morphology was reta
ined up to about 1200 degrees C, at Which the disruption of the spheres too
k place. (C) 1999 Academic Press.