Structural, compositional and electrical properties of co-precipitated zinc stannate |
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| Authors: | A.R. BabarS.B. Kumbhar S.S. ShindeA.V. Moholkar J.H. KimK.Y. Rajpure |
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| Affiliation: | a Electrochemical Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India
b Department of Materials Science and Engineering, Chonnam National University, 300 Yongbong-Dong, Buk-Gu, Gwangju 500-757, South Korea |
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| Abstract: | Zinc stannate (Zn2SnO4) powders were synthesized by chemical co-precipitation method using stannic chloride pentahydrate (SnCl4·5H2O) and zinc acetate (Zn(CH3COO)3·4H2O) as precursors in aqueous medium. The influence of sintering temperatures on the structural, compositional, dielectric, electrical and impedance properties has been studied. X-ray diffraction study reveals that samples sintered at 400-1200 °C show combined phases viz. ZnO, SnO2, Zn2SnO4. The observed binding energies of Sn 3d5/2, Zn 2p3/2 and O 1s reveal that Sn and Zn are present in oxidized state (Sn-O-Zn). We studied interparticle interactions like grains, grain boundary effects using complex impedance spectroscopy. |
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| Keywords: | Chemical co-precipitation Zinc stannate Structural Electrical properties Impedance |
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