Abstract
Using complex impedance analysis, temperature-dependent electrical conductivity studies of various compositions of the mixed system 40(Cu 1− x Ag x I)–30(Ag 2O)–30(SeO 2), (0.05≤ x≤0.25) over the temperature region 295–445 K have been carried out. All the chosen compositions of the system exhibit Arrhenius type of conductivity as a function of temperature and their activation energies for conduction lie in the range 0.27–0.42 eV. The values of ionic transport number of these materials are greater than 0.96. The presence of AgI in these materials has been inferred from the β→α phase transition of AgI, which is characterized by an endothermic peak at around 416 K in the DSC traces of these specimens. While the structural analysis carried out by means of X-ray diffraction has revealed the formation of AgI, Ag 2SeO 4 and new phases involving glassy and crystalline compounds, the Fourier transform infrared (FTIR) spectroscopic results have indicated the presence of SeO 4 2−, SeO 3 2− and Se 2O 7 2− species thus confirming the ionic nature of the phases.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
