Anatase Titanium Dioxide Crystallization by a Hydrolysis Reaction of Titanium Alkoxide without Annealing

The crystallization of anatase titanium dioxide (TiO2) was achieved by a hydrolysis reaction of titanium alkoxide without annealing. The hydrolysis reaction rates of tetraethyl orthotitanate were indicated by a function of the concentration of acetylacetone added. The degree of crystallinity of the...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Ceramic Society 2006-08, Vol.89 (8), p.2381-2386
Main Authors: Funakoshi, Kunio, Nonami, Toru
Format: Article
Language:English
Subjects:
Acetylacetone
Anatase
Annealing
Catalysis
Catalysts: preparations and properties
Chemical reactions
Chemistry
Cross-disciplinary physics: materials science
rheology
Crystallization
Crystals
Degree of crystallinity
Exact sciences and technology
General and physical chemistry
Growth from solutions
Hydrolysis
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Seeds
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Titanium
Titanium dioxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The crystallization of anatase titanium dioxide (TiO2) was achieved by a hydrolysis reaction of titanium alkoxide without annealing. The hydrolysis reaction rates of tetraethyl orthotitanate were indicated by a function of the concentration of acetylacetone added. The degree of crystallinity of the product particles was influenced by the amounts of acetylacetone and seed crystals. Anatase TiO2 was crystallized by restraining the rapid increase in supersaturation of TiO2 and the consequent nucleation of amorphous TiO2. The degree of crystallinity of the product particles also changed with the types of seed crystals used, and was strongly influenced by the specific surface areas of the seed crystals.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2006.01011.x