Study of D.C.Ionic Conductivity in BaCl2:SiO2 Composite Solid Electrolyte System

International Conference on Advances in Materials and Manufacturing Applications 2016

Swamalatha, R.^1 ; Kumar, T Vijay^2 ; Chary, A Sadananda^3 ; Reddy, S Narender^1

Department of Physics, University College of Engineering, Osmania University, Hyderabad, Telangana

500007, India^1

Department of Physics, Malla Reddy Engineering College (JNTUH), Hyderabad, Telangana, Secunderabad

5000043, India^2

Department of Physics, University College of Science, Osmania University, Hyderabad, Telangana

500007, India^3

关键词: Composite solid electrolytes;    Conductivity enhancement;    DC ionic conductivity;    Dispersoid particles;    FT-IR study;    Orders of magnitude;    Space charge regions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012188/pdf
DOI  :  10.1088/1757-899X/149/1/012188

来源: IOP

【 摘 要 】

Study of d.c. ionic conductivity in pure BaCl2and BaCl2dispersed with the insulating material SiO2is presented in this work.Variation of dc ionic conductivity with temperature has shown a gradual enhancement of conductivity with m/o of dispersoid reaching to a maximum of nearly two orders of magnitude at 6.6m/o. The fall of enhancement was observed with further increase in m/o of dispersoid. The enhancement of conductivity in this system is interpreted due to increased concentration of charge carriers in the space charge region formed at the interface between the host BaCl2and insulating dispersoid particles SiO2. XRD and FTIR studies have ruled out the formation of new compound or solid solution, between the host and the dispersoid, as there are no new peaks observed in all these systems.