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Structural characterization and electrical properties of Ce1-xSmxO2-δ by sucrose-pectin–assisted auto combustion process

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Abstract

Ce1-xSmxO2-δ (x = 0.0, 0.1, 0.2, 0.3) samples were prepared by sucrose and pectin–assisted auto combustion method. The phase identification, morphology, spectroscopic properties, and electrical properties of the samples are studied by XRD, FESEM, Raman spectrometer, and impedance spectroscopy. Rietveld refinement was carried on XRD samples for structural properties. Samples showed a single phase with the cubic fluorite structure. The average crystallite size was in the range of 10–17 nm. The sample Ce0.8Sm0.2O2−δ exhibits improved conductivity with low activation energy in comparison with pure ceria.

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Availability of data and material

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request. All data generated or analyzed during this study are included in this article.

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Acknowledgments

Authors would like to thank Prof. K. James Raju from the University of Hyderabad for providing experimental facilities

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  1. Department of Physics, School of Science, Gandhi Institute of Technology and Management (GITAM), Hyderabad (Rudraram), Telangana, 502329, India

    S. Ramesh & G. Rajitha

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  1. S. Ramesh
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All authors contributed to the present research article. Material preparation, and data collection and analysis were performed by Ramesh S and Rajitha G. The first draft of the manuscript was written by Ramesh S, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to S. Ramesh.

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Ramesh, S., Rajitha, G. Structural characterization and electrical properties of Ce1-xSmxO2-δ by sucrose-pectin–assisted auto combustion process. Ionics 26, 5089–5098 (2020). https://doi.org/10.1007/s11581-020-03658-7

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