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Titanium(IV) acetylacetonate xerogels for processing titania films

A thermoanalytical study

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Abstract

Thermal decomposition of dried crystalline powder obtained from titanium(IV) bis(acetylacetonate) diisopropoxide (75% solution in 2-propanol) (1) was monitored by simultaneous TG/DTA, EGA-FTIR and EGA-MS measurements and the results were compared with those of amorphous powder obtained by gelling of acetylacetonate-modified titanium(IV) tetra-isopropoxide at molar ratio of 1:2 in boiling 2-methoxyethanol (2). Thermal degradation of 1 in the temperature range of 25–700°C consists of 5 steps with a total mass loss of 62.5%. EGA by FTIR and MS revealed the release of H2O below 120°C; followed by an intensive evolution of acetylacetone around 245°C. The release of acetone and acetic acid occurs up to 270°C and that of CO and CO2 up to 530°C.

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Authors and Affiliations

  1. Faculty of Chemistry and Materials Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia

    Ilona Oja Acik, M. Krunks & K. Tõnsuaadu

  2. Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4, 1521, Budapest, Hungary

    J. Madarász & G. Pokol

  3. Laboratory of Inorganic and Analytical Chemistry, Helsinki University of Technology, P.O. Box 6100, 02015, Espoo, Finland

    L. Niinistö

Authors
  1. Ilona Oja Acik
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  2. J. Madarász
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  3. M. Krunks
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  4. K. Tõnsuaadu
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  5. G. Pokol
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  6. L. Niinistö
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Correspondence to M. Krunks.

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Acik, I.O., Madarász, J., Krunks, M. et al. Titanium(IV) acetylacetonate xerogels for processing titania films. J Therm Anal Calorim 97, 39–45 (2009). https://doi.org/10.1007/s10973-008-9647-1

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  • DOI: https://doi.org/10.1007/s10973-008-9647-1

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