Open AccessStudy on Heating Profile of Liquid-mixing-synthesized ZnTiO3
Author(s) -
Frida Ulfah Ermawati,
Nur Azizah Imamah
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/599/1/012010
Subject(s) - rutile , crystallinity , materials science , phase (matter) , stoichiometry , solvent , raw material , analytical chemistry (journal) , atmospheric temperature range , fourier transform infrared spectroscopy , mixing (physics) , chemical engineering , chemistry , thermodynamics , organic chemistry , composite material , physics , quantum mechanics , engineering
The synthesis of monophasic ZnTiO 3 powder has been reported as one of the challenges in material chemistry because under normal condition and as prepared by various synthesis methods, ZnTiO 3 phase readily decomposes to Zn 2 TiO 4 and TiO 2 rutile phases. This is due to the temperature range of ZnTiO 3 phase formation was very narrow, i.e. 600 - 800 °C; above that temperature, the decomposition of ZnTiO 3 phase took place. This paper is intended to introduce a facile route, named liquid mixing method, to prepare ZnTiO 3 powder from Zn and Ti metal powders as the raw materials and HCl as the solvent. Via this route, ZnTiO 3 phase was formed at a temperature as low as 550 °C with particle size distributed homogeneously. The heating profile of ZnTiO 3 phase from 440 to 900 °C was studied based on TG/DTA, XRD and FTIR data. However, when a ‘normal’ stoichiometric ratio of Zn: Ti = 1: 1 was applied, TiO 2 rutile phase becomes dominant, while ZnTiO 3 phase is only a secondary phase. This affects to the crystallinity of the ZnTiO3 phase. An effort to overcome the dominance of TiO 2 phase was also demonstrated in this paper.