Synthesis and characterization of sol–gel derived (Ba,Ca)(Ti,Zr)O3 nanoparticles

  • Min Wang
  • Ruzhong Zuo
  • Shishun Qi
  • Longdong Liu


A citrate precursor method was employed to synthesize lead-free perovskite 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 (BZT-0.5BCT) crystallites. Powders and gels were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectra, thermal analysis and transmission electron microscopy. It was indicated that BZT-0.5BCT transparent gel can be obtained via the chelation of citric acid with metal ions. Gels transformed into crystalline powders with single-phase perovskite structure when heat-treated above 650 °C, significantly lower than that in a solid-state reaction method. The primary particle size of the powders increased from 30 to 60 nm as the decomposition temperature was raised from 600 to 750 °C.


Calcination Temperature Perovskite Structure Citrate Precursor Method Faint Peak Citric Acid Aqueous Solution 
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This work was financially supported by the Fundamental Research Funds for the Central Universities, and by the National Natural Science Foundation of China (50972035) and a Program for New Century Excellent Talents in University, State Education Ministry (NCET-08-0766).


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Min Wang
    • 1
  • Ruzhong Zuo
    • 1
  • Shishun Qi
    • 1
  • Longdong Liu
    • 1
  1. 1.Institute of Electro Ceramics and Devices, School of Materials Science and EngineeringHefei University of TechnologyHefeiPeople’s Republic of China

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