Solid electrolytes for electrochromic devices based on reversible metal electrodeposition
FADEMS
Solid electrolytes for electrochromic devices based on reversible metal electrodeposition
FADEMS
Ceria-yttria-stabilized zirconia composite ceramic systems for applications as low-temperature electrolytes
Ceramic samples of Ce1-xGdxO2-y and yttria-stabilized zirconia (YSZ) were prepared using solid-state methods. Polished faces of disks of these materials were held in intimate contact in a reaction cell at temperatures ranging from 1000 degrees to 1300 degrees C for durations up to 72 h. XRD, SEM, and microprobe Raman techniques were used to analyze...
Ionic conductivity of ceria/Yttria Stabilized Zirconia Electrolyte Materials
CeO2-based electrolytes are promising candidates for intermediate temperature SOFC applications. However, they are prone to electronic conduction at low partial pressures of oxygen. This paper describes the effect of yttria stabilized zirconia (YSZ) additions on (CeO2)(0.8)(GdO1.5)(0.2) materials between 0 and 20 mol% YSZ [8 mol% YSZ (8YSZ) and 3 m...
The Structural and Mechanical properties of (CeO2)1-x(GdO1.5)x Electrolytes
(CeO2)(1-x) (GdO1.5)(x) is a possible candidate as an electrolyte in a low temperature solid oxide fuel cell. This paper describes how Raman spectroscopy can be used to determine the structural changes observed with increasing Gd2O3 dopant concentration. The mechanical properties of (CeO2)(0.8) (GdO1.5)(0.2) were also determined. The 4-point bend s...
Phase Stability and Oxygen ion Conductivity in Bi2O3-Pr6O11
Oxygen ion conductivity was measured on a number of (Bi2O3)1-x(Pr6O11)x systems from room temperature to 550-degrees-C. At x=0.05, the rhombohedral Bi1.35Pr0.65O3 structure was found to be stable up to 550-degrees-C. At higher concentrations, a mixture of rhombohedral and possibly monoclinic type structures were determined, which at x=0.2 became fu...
