Phase Stable Doped Cubic Bismuth Oxide and Methods For Producing and Using the Same
AssigneeUniversity of Maryland, College Park
InventorsEric D. Wachsman, Adam Jolley
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Abstract
The present invention relates to a doped cubic bismuth oxide that is phase stable in a temperature range of from about 550° C. to about 700° C. The doped cubic bismuth oxide comprises a mixture of a first dopant and a second dopant.
Claims29
A doped cubic bismuth oxide composition that is phase stable in a temperature range of from about 550° C. to about 700° C., wherein said doped cubic bismuth oxide comprises a mixture of a first dopant and a second dopant.
A doped bismuth oxide composition comprising bismuth oxide doped with a mixture of a first dopant and a second dopant, wherein the total amount of said first and said second dopant in said doped bismuth oxide comprises about 15 mole % or less of a total metal content, and wherein said doped bismuth oxide comprises a δ-phase bismuth oxide at a temperature of about 650° C.
A solid oxide fuel cell comprising a solid oxide cell electrolyte, wherein said solid oxide cell electrolyte comprises a LaZr doped cubic bismuth oxide having at least about 20% higher electric conductivity at 650° C. than Bi1.76Dy0.16W0.08O3 (DWSB).
Dependencies are inferred from the claim text.