Effect of temperature and time on solvothermal synthesis of tetragonal BaTiO3

Bulletin of materials science

Roland Haubner³  Nils Stelzer⁴  Paul Angerer²  Amir Habib¹ 

[1]School of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, Pakistan$$Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria$$School of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, PakistanSchool of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, Pakistan$$Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria$$Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, AustriaSchool of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, Pakistan$$Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria$$

[2]Centre of Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria$$Centre of Electrochemical Surface Technology, A-2700 Wiener Neustadt, AustriaCentre of Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria$$

[3]Vienna University of Technology, Getreidemarkt 9/164-CT, A-1060 Vienna, Austria$$Vienna University of Technology, Getreidemarkt 9/164-CT, A-1060 Vienna, AustriaVienna University of Technology, Getreidemarkt 9/164-CT, A-1060 Vienna, Austria$$

[4]Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria$$Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, AustriaAustrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria$$

关键词: Powders-chemical preparation;    X-ray methods;    electron microscopy;    BaTiO3;    tetragonal phase.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Tetragonal BaTiO₃ nanoparticles are synthesized via solvothermal route in an ethanol water mixture. Ba(OH)₂.8H₂O is used as Ba precursor and TiO₂ (P25 Degussa ∼25 nm, 30% anatase, 70% rutile) is used as Ti precursor in the Ba : Ti molar ratio 2 : 1. Effect of temperature and time study on solvothermal synthesis of BaTiO₃ revealed that a moderate reaction temperature i.e. 185°C and longer reaction time favour tetragonal phase stabilization. Dissolutionâ€�?�precipitation appears to be the transformation mechanism for the crystallization of BaTiO₃ from particulate TiO₂ precursor.

【 授权许可】

Unknown