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M. Krunks Faculty of Chemistry and Materials Technology, Tallinn University of Technology Ehitajate tee 5, EE-19086 Tallinn, Estonia

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I. Oja Faculty of Chemistry and Materials Technology, Tallinn University of Technology Ehitajate tee 5, EE-19086 Tallinn, Estonia

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K. Tőnsuaadu Faculty of Chemistry and Materials Technology, Tallinn University of Technology Ehitajate tee 5, EE-19086 Tallinn, Estonia

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M. Es-Souni Institute for Materials and Surface Technology, Kiel University of Applied Sciences Grenz str. 3, DE-21149 Kiel, Germany

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M. Gruselle Laboratory of Inorganic Chemistry and Molecular Materials, CNRS University P.M. Curie UMR7071, F-75252 Paris, France

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L. Niinistö Laboratory of Inorganic and Analytical Chemistry, Helsinki University of Technology FIN-02015 Espoo, Finland

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Summary Thermal decomposition of dried TiO2 gel, obtained by hydrolysing acetylacetonate-modified titanium(IV) isopropoxide, was monitored by simultaneous TG/DTA/EGA-FTIR measurements in dynamic air up to 900°C. XRD and FTIR were employed to identify the solid reaction products. Thermal degradation of the TiO2 gel consists of five distinct mass loss steps, the total mass loss being 43.8&. EGA by FTIR revealed the release of H2O below 120°C; followed by acetone, isopropyl acetate and 1-propanol around 200-300°C, and finally CO and CO2 up to 550°C. Highly exothermic reaction at 410-550°C is caused by the combustion of carbon residues. Crystalline TiO2-anatase is formed around 500°C and TiO2-rutile close to 800°C.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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