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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/034/01/0019-0023

    • Keywords

       

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

    • Abstract

       

      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. Dissolution–precipitation appears to be the transformation mechanism for the crystallization of BaTiO3 from particulate TiO2 precursor.

    • Author Affiliations

       

      Amir Habib1 2 Nils Stelzer2 Paul Angerer3 Roland Haubner4

      1. School of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, Pakistan
      2. Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria
      3. Centre of Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria
      4. Vienna University of Technology, Getreidemarkt 9/164-CT, A-1060 Vienna, Austria
    • Dates

       

© 2017 Indian Academy of Sciences, Bengaluru.