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Issue 3, 2001
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Non-random distribution of cations in Sn1 − xTixO2(0.0 ≤ x ≤ 1.0): a 119Sn MAS NMR study

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Abstract

Mixed oxide samples of Sn1 − xTixO2 (0.0 ≤ x ≤ 1.0), prepared by the co-precipitation method followed by heating at variable temperatures, have been investigated by powder X-ray diffraction and 119Sn MAS NMR spectroscopy. Based on powder X-ray diffraction studies, the formation of solid solutions has been observed for samples annealed up to ≈800 °C. Annealing of the samples with 0.2 ≤ x ≤ 0.8 at higher temperatures led to their decomposition into two phases with a rutile structure, one being rich in Sn4+ and the other in Ti4+. Based on the comparison of the 119Sn MAS NMR spectra of the single phase and phase separated compositions, it is inferred that the cation distribution is non-random even for the samples which exhibited single phase formation.

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Publication details

The article was received on 02 Aug 2000, accepted on 13 Nov 2000 and first published on 22 Jan 2001


Article type: Paper
DOI: 10.1039/B006258H
Citation: J. Mater. Chem., 2001,11, 930-935
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    Non-random distribution of cations in Sn1 − xTixO2 (0.0 ≤ x ≤ 1.0): a 119Sn MAS NMR study

    S. K. Kulshreshtha, R. Sasikala and V. Sudarsan, J. Mater. Chem., 2001, 11, 930
    DOI: 10.1039/B006258H

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