Titanium(IV) acetylacetonate xerogels for processing titania films

被引：23

作者：

Acik, Ilona Oja ^{[1
]}

Madarasz, J. ^{[2
]}

Krunks, M. ^{[1
]}

Tonsuaadu, K. ^{[1
]}

Pokol, G. ^{[2
]}

Niinisto, L. ^{[3
]}

机构：

[1] Tallinn Univ Technol, Fac Chem & Mat Technol, EE-19086 Tallinn, Estonia

[2] Budapest Univ Technol & Econ, Dept Inorgan & Analyt Chem, H-1521 Budapest, Hungary

[3] Helsinki Univ Technol, Inorgan & Analyt Chem Lab, Espoo 02015, Finland

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2009年 / 97卷 / 01期

关键词：

EGA by FTIR and MS; sol-gel titania processing; Ti(IV)-acac xerogel; DEPOSITION SPD TECHNIQUE; SPRAY-PYROLYSIS; TIO2; FILMS; RAMAN; ISOPROPOXIDE; SPECTRA;

D O I：

10.1007/s10973-008-9647-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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 25-700A degrees C consists of 5 steps with a total mass loss of 62.5%. EGA by FTIR and MS revealed the release of H2O below 120A degrees C; followed by an intensive evolution of acetylacetone around 245A degrees C. The release of acetone and acetic acid occurs up to 270A degrees C and that of CO and CO2 up to 530A degrees C.

引用

页码：39 / 45

页数：7

共 17 条

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