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Formation of TiO/Al2O3/C Composite in Thermal Co-decomposition of Aluminium(III) Acetylacetonate and Titanium(IV) Oxyacetylacetonate.
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SYSNO ASEP 0455420 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Formation of TiO/Al2O3/C Composite in Thermal Co-decomposition of Aluminium(III) Acetylacetonate and Titanium(IV) Oxyacetylacetonate. Author(s) Kovářík, T. (CZ)
Pokorná, Dana (UCHP-M) RID, SAI
Urbanová, Markéta (UCHP-M) RID, SAI
Bezdička, Petr (UACH-T) SAI, RID, ORCID
Bastl, Zdeněk (UFCH-W) RID, ORCID
Kupčík, Jaroslav (UACH-T) SAI, RID, ORCID
Křenek, T. (CZ)
Pola, M. (CZ)
Kullová, L. (CZ)
Pola, Josef (UCHP-M) RID, ORCID, SAISource Title Journal of Analytical and Applied Pyrolysis. - : Elsevier - ISSN 0165-2370
Roč. 117, JAN 2016 (2016), s. 182-190Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords thermal co-decomposition ; aluminium(III) acetylacetonate ; titanium(IV) oxyacetylacetonate ; titanium monoxide ; alumina ; Carbona Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Subject RIV - cooperation Institute of Inorganic Chemistry - Inorganic Chemistry
J. Heyrovsky Institute of Physical Chemistry - Physical ; Theoretical ChemistryR&D Projects TA04020860 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UCHP-M - RVO:67985858 ; UACH-T - RVO:61388980 ; UFCH-W - RVO:61388955 UT WOS 000370105000021 EID SCOPUS 84959181351 DOI 10.1016/j.jaap.2015.12.002 Annotation Thermal co-decomposition of Al(III) acetylacetonate-Ti(IV) oxyacetylacetonate mixture has been exam-ined by using thermal gravimetry, differential scanning calorimetry and complementary analyses ofevaporated products and solid residues by Fourier Transform Infrared, Raman and X-ray photoelectronspectroscopy, X-ray diffraction and scanning and transmission electron microscopy. The process is shownto differ from thermal decompositions of single acetylacetonates. Linear heating of the mixture allowspredominant sublimation and minor degradation of Al(III) acetylacetonate along with extensive degra-dation of Ti(IV) oxyacetylacetonate to TiO2. Stepwise heating results in sublimation of one half of Al(III)acetylacetonate and co-decomposition of the residual chelates. The co-decomposition is judged to occurvia an intermediary complex between both monomeric chelates. It primarily leads to an amorphous Ti,Al, C and O-containing phase which develops crystalline alumina and titanium monoxide upon anneal-ing to high temperatures. The carbonaceous component of the amorphous phase assists in carbothermalformation and stabilization of titanium monoxide. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2016
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