Evolution of the Polymorph Selectivity of Titania Formation under Acidic and Low-Temperature Conditions
Journal article, 2019
Evolution of the polymorph selectivity of titanium dioxide was studied under acidic and low-temperature synthesis conditions. Short synthesis times resulted in high relative amounts of the rutile phase, and long synthesis times resulted in high relative amounts of the brookite and anatase phases. The effect of titania precursor concentration was investigated and found to have a large impact on the polymorph selectivity. As the reaction proceeds with time, changes in the chemical environment, caused in particular by the gradually decreasing titania precursor concentration, are therefore likely the cause of the change in polymorph selectivity observed.
Author
Gunnar Örn Simonarson
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Sanna Sommer
Aarhus University
Antiope Lotsari
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Björn Neo Esbjörnsson Elgh
Aarhus University
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Bo B. Iversen
Aarhus University
Anders Palmqvist
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
ACS Omega
24701343 (eISSN)
Vol. 4 3 5750-5757Subject Categories
Production Engineering, Human Work Science and Ergonomics
Control Engineering
Computer Science
DOI
10.1021/acsomega.8b03440