Development of a new fast ionic system based on antimony iodide and silver phosphate

S Suthanthiraraj, & Sarumathi
2013 Indian Journal of Pure & Applied Physics   unpublished
A series of compositions of the mixed system (SbI 3) 100-x-(Ag 3 PO 4) x , where x = 10, 20, 30, 40, 50 60, 70,80 and 90 mol% have been prepared by melt quench technique and characterized by means of X-ray diffraction (XRD), Differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectra, X-ray photoelectron spectroscopy (XPS), ion transference number measurements and electrical conductivity studies involving complex impedance analysis. The room temperature electrical
more » ... vity (298) data have suggested an increase value of conductivity with increasing concentration of the dopant namely, SbI 3 attaining a maximum value of 4.2×10 −3 Scm −1 in the case of the typical composition having 40 mol % SbI 3. It has also been noticed that the insertion of iodide ions would expand the network resulting in the opened up structure for the favourable migration of Ag + ions within AgI, which may be formed due to an ion exchange reaction between SbI 3 and Ag 3 PO 4 in accordance with hard and soft acids and bases (HSAB) principle.