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Formation of TiO/Al2O3/C Composite in Thermal Co-decomposition of Aluminium(III) Acetylacetonate and Titanium(IV) Oxyacetylacetonate.

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, SAI}
Source Title	Journal of Analytical and Applied Pyrolysis. - : Elsevier - ISSN 0165-2370 Roč. 117, JAN 2016 (2016), s. 182-190
Number 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 Chemistry
R&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

Number of the records: 1