http://www.cnr.it/ontology/cnr/individuo/prodotto/ID68176
Structural modification of doped and undoped nanocrystalline TiO2 by temperature-resolved XRPD (Contributo in atti di convegno)
- Type
- Label
- Structural modification of doped and undoped nanocrystalline TiO2 by temperature-resolved XRPD (Contributo in atti di convegno) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
Matteucci F., Cruciani G., Dondi M., Baldi G., Dalconi M.C., Barzanti A., Lorenzi G., Meneghini C (2006)
Structural modification of doped and undoped nanocrystalline TiO2 by temperature-resolved XRPD
in CIMTEC 2006 - 11th International Ceramics Congress, Acireale, 4-9 June 2006
(literal)
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- Matteucci F., Cruciani G., Dondi M., Baldi G., Dalconi M.C., Barzanti A., Lorenzi G., Meneghini C (literal)
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- Advances in science and technology (literal)
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- ISTEC-CNR Faenza (MF, DM). Univ. Ferrara (CG, DMC). Colorobbia Italia (BG, BA, LG). Univ. Roma Tre (MC) (literal)
- Titolo
- Structural modification of doped and undoped nanocrystalline TiO2 by temperature-resolved XRPD (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
- Abstract
- Nanocrystalline titania pigments were produced by a novel synthesis route consisting of a high temperature forced hydrolysis in a coordinating high-boiling solvent. The effect of synthesis conditions as well as doping with Cr, Sb and V on the particle size and on the anatase-to-rutile transformation was studied by temperature-resolved synchrotron powder diffraction. The experiments were performed directly on as-synthesized low concentration suspensions of titania nanoparticles (up to 230°C) and on dried titania nanoparticles (up to 950°C). Crystallite size of as-synthesized nanoparticles is in the 5 to 50 nm range, being affected by the synthesis conditions as well as by doping and exhibits a slow-rate coarsening trend with temperature. The anatase-to-rutile transformation is drastically influenced by both synthesis conditions and doping. In particular, doping affected the anatase-to-rutile transformation rate, while the synthesis conditions influenced the phase composition, causing the appearance of brookite. (literal)
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