Electrical and dielectric properties of ZnO and CeO{sub 2} doped ZrTi{sub 2}O{sub 6} ceramic

Journal Article · Tue Jan 28 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4861994· OSTI ID:22263994

George, Aneesh; Thomas, Jijimon K.; John, Annamma ^[1]; Solomon, Sam ^[2]

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1. Department of Physics, Mar Ivanios College, Thiruvananthapuram 695015 (India)
2. Department of Physics, Mar Ivanios College, Thiruvananthapuram 695015, India and Department of Physics, St. John's College, Anchal, Kollam 691306 (India)

Zirconium oxide (ZrO{sub 2}) and titanium dioxide (TiO{sub 2}) are the important catalyst supports, since it has acidic and basic properties. The intermediate phase zirconium titanate ZrTi{sub 2}O{sub 6}, which is a solid solution with Zr:Ti ratio 1:2 has outstanding dielectric properties. The effects of doping of ZnO and CeO{sub 2} on the dielectric and electrical properties of ZrTi{sub 2}O{sub 6} ceramic are investigated. On adding 0.5 wt% ZnO, the dielectric constant is increased but, on adding CeO{sub 2}, the dielectric constant is decreased. The bulk density of pure sample sintered at 1530 °C is 91% of theoretical density while that of the doped samples sintered at 1450 °C is more than 94% of theoretical density. Scanning electron micrographs reveal that the samples are well sintered with minimum porosity. The semicircle behavior in the Cole-Cole plots at room temperature reveals that the samples are good ionic conductor. The induced impedance is reduced for doped samples and this can be used as a material for electrolyte in Solid Oxide Fuel Cell.

• OSTI ID: 22263994
• Journal Information: AIP Conference Proceedings, Vol. 1576, Issue 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
BULK DENSITY
CATALYST SUPPORTS
CERAMICS
CERIUM OXIDES
DIELECTRIC MATERIALS
DOPED MATERIALS
ELECTRIC CONDUCTORS
ELECTROLYTES
ELECTRON SCANNING
PERMITTIVITY
POROSITY
SOLID OXIDE FUEL CELLS
SOLID SOLUTIONS
TITANATES
TITANIUM OXIDES
ZINC OXIDES
ZIRCONIUM
ZIRCONIUM OXIDES