Crystallization Kinetics Study of Cerium Titanate CeTi2O6

0399239 - ÚCHP 2014 RIV GB eng J - Journal Article
Valeš, V. - Matějová, Lenka - Matěj, Z. - Brunátová, T. - Holý, V.
Crystallization Kinetics Study of Cerium Titanate CeTi2O6.
Journal of Physics and Chemistry of Solids. Roč. 75, č. 2 (2014), s. 265-270. ISSN 0022-3697. E-ISSN 1879-2553
R&D Projects: GA ČR GP104/09/P290
Grant - others:GA ČR(CZ) GAP204/11/0785; GA ČR(CZ) GAP108/11/1539
Institutional support: RVO:67985858
Keywords : ceramics * sol–gel growth * y-ray diffraction * thermodynamics properties
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.853, year: 2014

Cerium titanate CeTi2O6 has been investigated recently for its photocatalytic activity and as a safe analogue to actinide-containing brannerite-like titanates (UTi2O6, PuTi2O6, e.g.) which are intensively studied because of their use for storing nuclear waste. In this paper we report on the monoclinic phase CeTi2O6 obtained from the Ti–Ce oxide mixture prepared by a reverse micelles directed sol–gel method and subsequently annealed. The kinetics of the isothermal crystallization process is investigated by means of Johnson–Mehl–Avrami–Kolmogorov equation. The effective activation energy of the formation of CeTi2O6 particles, which is an important parameter for its synthesis, is estimated.
Permanent Link: http://hdl.handle.net/11104/0226565