Titanium(IV) acetylacetonate xerogels for processing titania films: AAA thermoanalytical study

Ilona Oja Acik, J. Madarász, M. Krunks, K. Tõnsuaadu, G. Pokol, L. Niinistö

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)39-45
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume97
Issue number1
DOIs
Publication statusPublished - Jul 1 2009

Keywords

  • EGA by FTIR and MS
  • Sol-gel titania processing
  • Ti(IV)-acac xerogel

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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