Synthesis, characterization and dielectric properties of \(\hbox {TiO}_{2}\)\(\hbox {CeO}_{2}\) ceramic nanocomposites at low titania concentration

  • Tokeer AhmadEmail author
  • Mohd Shahazad
  • Mohd Ubaidullah
  • Jahangeer Ahmed


\(\hbox {TiO}_{2(x)}\)\(\hbox {CeO}_{2(1-x)}\) nanocomposites were prepared at low \(\hbox {TiO}_{2}\) composition of 5, 10, 15 and 20%, by using \(\hbox {TiO}_{2}\) and \(\hbox {CeO}_{2}\) nanoparticles obtained by polymeric citrate precursor method. These nanocomposites were characterized by using powder X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive analysis of X-rays and BET surface area studies. BET studies showed the specific surface area of as-prepared nanocomposites in the range of 239–288 \(\hbox {m}^{2}~\hbox {g}^{-1}\). Twenty percent of \(\hbox {TiO}_{2}\)-based titania–ceria nanocomposites have smallest average particle size of 30 nm and highest surface area of 288 \(\hbox {m}^{2}~\hbox {g}^{-1}\) among all the as-prepared nanocomposites. The dielectric characteristics were measured as a function of frequency and temperature. The dielectric constant of \(\hbox {TiO}_{2(x)}\)\(\hbox {CeO}_{2(1-x)}\) at room temperature was 35.6 (maximum) at 500 kHz for \(x = 0.20\).


Polymeric citrate precursor method nanocomposites dielectric properties 



TA thanks CSIR, Govt. of India, for financial support of the research Project (No. 01(2897)/17/EMR-II). We thank CIF, Jamia Millia Islamia for XRD studies, and AIIMS, New Delhi, for TEM studies. MS thanks to UGC for providing fellowship.


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Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  1. 1.Nanochemistry Laboratory, Department of ChemistryJamia Millia IslamiaNew DelhiIndia
  2. 2.Department of Chemistry, College of ScienceKing Saud UniversityRiyadhSaudi Arabia

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