Structural characterization and complex impedance studies on fast ion conducting mixed system (SbI3)𝑥â€�?(Ag2CrO4)1−ð�?�¥

Bulletin of materials science

S Austin Suthanthiraraj¹  S Sarojini² 

[1] Department of Energy, University of Madras, Guindy Campus, Chennai 600 025, India$$Department of Energy, University of Madras, Guindy Campus, Chennai 600 025, IndiaDepartment of Energy, University of Madras, Guindy Campus, Chennai 600 025, India$$;PG and Research Department of Physics, Queen Mary’s College, Chennai 600 004, India$$PG and Research Department of Physics, Queen Mary’s College, Chennai 600 004, IndiaPG and Research Department of Physics, Queen Mary’s College, Chennai 600 004, India$$

关键词: Electrical conductivity;    impedance;    DSC;    XRD;    conductivity spectra.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

This paper deals with preparation and physico-chemical characterization of a new mixed system, (SbI₃)_ð‘�?â€�??(Ag₂CrO₄)_{1−ð�?��?} (0.1 â‰�? ð‘�? â‰�? 0.9), undertaken with a view to evaluate silver ion transport properties and identify those fast ion conducting compositions. Polycrystalline samples of various compositions were synthesized by rapid melt-quenching method. Powder X-ray diffraction (XRD) analysis in conjunction with differential scanning calorimetry (DSC) and electrical transport evaluation involving silver ionic transport number and temperaturedependent electrical complex impedance measurements were carried out in order to identify the different phases responsible for the conduction mechanism. Realization of a fast ionic conductivity value of 3.2 Ã�? 10^-2 S cm^-1 in the case of the composition, (SbI₃)_0.3â€�??(Ag₂CrO₄)_0.7, at room temperature due to silver ion transport has been discussed in terms of observed structural and thermal characteristics. A detailed analysis of conductivity spectra pertaining to the best conducting system, (SbI₃)_0.3â€�??(Ag₂CrO₄)_0.7, has also been presented.

【 授权许可】

Unknown