Preparation and Characterization of Ag-Doped BaTiO3 Conductive Powders | Zendy

Sue Hao | Zendy; Dongsheng Fu | Zendy; Jialong Li | Zendy; Wei Wang | Zendy; Bin Shen | Zendy

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Preparation and Characterization of Ag-Doped BaTiO₃ Conductive Powders

Author(s) -

Sue Hao,

Dongsheng Fu,

Jialong Li,

Wei Wang,

Bin Shen

Publication year - 2011

Publication title -

international journal of inorganic chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-2026

pISSN - 2090-2034

DOI - 10.1155/2011/837091

Subject(s) - calcination , materials science , doping , electrical resistivity and conductivity , fourier transform infrared spectroscopy , conductivity , chemical engineering , characterization (materials science) , mineralogy , particle size , molar ratio , sol gel , analytical chemistry (journal) , nanotechnology , chemistry , organic chemistry , catalysis , optoelectronics , electrical engineering , engineering

BaTiO3 powders doped with Ag at different Ag/Ba molar ratios were prepared by sol-gel method. The resistivity reached the lowest point of 5.644 Ω·m when Ag concentration was 0.10 at% and the powders were calcined for two times at 800°C and 500°C. XRD and FTIR investigations showed that no new substance was formed after the doping and calcining process, but the particle size and the strength of Ti-O bond in modified BaTiO3 crystal cell all changed. The conductivity of Ag-doped BaTiO3 powders with different Ag concentrations and through different preparing methods was discussed by using defect theory

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