Preparation and Study of La9.33(SiO4)6O2 Solid Electrolyte Materials Doped with Ba and Zn

Abstract

In this paper, apatite-type lanthanum silicate (hereinafter referred to as ATLS) electrolytes were doped with Ba and Zn at La and Si levels by gel sol method at a lower temperature. The doped La9.33BaxSi5ZnO25-x electrolytes were characterized by XRD, SEM analysis. The addition of Ba and Zn into the lattice of ATLS did not destroy the apatite crystal structure of the substance itself. SEM test showed that La9.33BaxSi5ZnO25-x electrolyte had the best sintering effect when Ba doping amount x=0.3.