Article

Pramana

, Volume 65, Issue 5, pp 937-947

Nanoparticles of complex metal oxides synthesized using the reverse-micellar and polymeric precursor routes

  • Ashok K. GanguliAffiliated withDepartment of Chemistry, Indian Institute of Technology Delhi Email author 
  • , Tokeer AhmadAffiliated withDepartment of Chemistry, Indian Institute of Technology Delhi
  • , Padam R. AryaAffiliated withDepartment of Chemistry, Indian Institute of Technology Delhi
  • , Pika JhaAffiliated withDepartment of Chemistry, Indian Institute of Technology Delhi

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Abstract

Current interest in the properties of materials having grains in the nanometer regime has led to the investigation of the size-dependent properties of various dielectric and magnetic materials. We discuss two chemical methods, namely the reverse-micellar route and the polymeric citrate precursor route used to obtain homogeneous and monophasic nanoparticles of several dielectric oxides like BaTiO3, Ba2TiO4, SrTiO3, PbTiO3, PbZrO3 etc. In addition we also discuss the synthesis of some transition metal (Mn and Cu) oxalate nanorods using the reverse-micellar route. These nanorods on decomposition provide a facile route to the synthesis of transition metal oxide nanoparticles. We discuss the size dependence of the dielectric and magnetic properties in some of the above oxides

Keywords

Chemical synthesis nanoparticle transmission electron microscopy dielectric properties

PACS Nos

81.07.Bc 77.84.Dy 82.70.Uv 75.50.-y