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Liu, C.-E., Rouet, A., Sutrisno, H., Puzenat, E., Terrisse, H., Brohan, L. & Richard-Plouet, M. (2008) Low temperature synthesis of nanocrystallized titanium oxides with layered or tridimensional frameworks, from [Ti8O12(H2O)(24)]Cl-8 center dot HCl center dot 7H(2)O hydrolysis. Chem. Mat. 20 4739–4748.
Added by: Richard Baschera (2016-03-10 21:58:41) Last edited by: Richard Baschera (2016-11-30 14:58:39) |
| Type de référence: Article DOI: 10.1021/cm800716f Numéro d'identification (ISBN etc.): 0897-4756 Clé BibTeX: Liu2008 Voir tous les détails bibliographiques  |
Catégories: CESES, PCM Mots-clés: anatase, brookite, dioxide, halides, recombination, rutile, selective synthesis, sensitized solar-cells, thin-films, tio2 films Créateurs: Brohan, Liu, Puzenat, Richard-Plouet, Rouet, Sutrisno, Terrisse Collection: Chem. Mat. |
Consultations : 1/573
Indice de consultation : 4% Indice de popularité : 1% |
| Résumé |
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{A low-temperature aqueous chemical growth process was developed to produce nanometric titanium oxide with controlled size and structural variety. Gentle hydrolysis of a commercial TiOCl2 solution, in a controlled relative humidity, leads to the formation of single crystals of a controlled relative humidity, leads to the formation of single crystals of [Ti8O12(H2O)(24)]Cl-8 center dot HCl center dot 7H(2)O. Under autogenous pressure at 120 degrees C, the hydrolysis of the latter by tetramethylammonium hydroxide (noted TMAOH) is mainly governed by the R = Ti/TMAOH molar ratio and thus by the pH value. Two values are particularly important: R = 8/9 and 8/17. The former corresponds to the balance of the Cl- ions of the titanium oxychloride hydrate by TMA(+) cations and the latter to the stoichiometric ratio for the formation of a layered oxo-hydroxide the formation of a layered oxo-hydroxide (TMA)(2) Ti2O4-x(CO3)(x)(OH)(2)center dot nH(2)O
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