Programme

O.5 -- Oral, VCTP-46

Date: Monday, 4 October 2021

Time: 14:50 - 15:10

Effect of temperature on electrical property of Ceria based electrolytes by doping Samaria and Gadolinia

Le Thu Lam and Pham Ngoc Thu

Faculty of Natural Sciences and Technology, Tay Bac University, Sonla, Vietnam

The moment method in statistical mechanics is applied to investigate the temperature dependence of electrical property of Ceria (CeO2) based electrolytes by doping Samaria (Sm2O3) and Gadolinia (Gd2O3). Vacancy-dopant association, migration, and activation energies for the vacancy diffusion are increasing functions of temperature. However, ionic conductivities are significantly enhanced at high temperatures. Notably, the maximum points in ionic conductivities are shifted to higher dopant concentrations with the increasing temperature.

Presenter: Le Thu Lam