Abstract
Composite materials used for electrode and electrolyte materials have been intensely studied in view of their advantages such as higher conductivity and better operational performance compared to their single-phase counterparts. The present work aims at studying the electrical and structural characteristics of a new composite electrolyte namely, (PbI2) x − (Ag2O–Cr2O3)100−x where x = 5, 10, 15, 20, and 25 mol%, respectively, prepared by the melt quenching technique. The room temperature X-ray diffraction spectra revealed certain crystalline phases in the samples. AC conductivity analysis for all the prepared samples was carried out over the frequency range 1 MHz–20 Hz and in the temperature window 297–468 K. The room temperature conductivity values were calculated to be in the order of 10−5–10−3 Scm−1. An Arrhenius dependence of temperature with conductivity was observed, and the activation energies calculated were found to be in the range 0.27–0.31 eV. Furthermore, the total ionic transport number (t i) values obtained for all these indicated the ionic nature of this system.
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Acknowledgment
Finally, we wish to thank the University Grants Commission, New Delhi for financial assistance in the form of a research project [no. F.10-22/2003(SR)].
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Suthanthiraraj, S.A., Mathew, V. AC Conductivity, XRD and transport properties of melt quenched PbI2–Ag2O–Cr2O3 system. Ionics 14, 79–83 (2008). https://doi.org/10.1007/s11581-007-0151-6
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DOI: https://doi.org/10.1007/s11581-007-0151-6