Oxidic bodies with ionic and electronic conductivity
AssigneeMax-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
InventorsWayne Worrell, Werner Weppner, Helmut Schubert
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Abstract
The present invention provides a mixed conducting body, wherein it consists f 98 to 25 mol % of cubic or tetragonal zirconium dioxide, 1.5 to 25 mol % of an oxide stabilizing the zirconium dioxide phase and 0.5 to 50 mol % of at least one oxide of a metal of Group Va and VIa of the Periodic System of Elements and/or titanium dioxide, as well as the usual impurities. This body is outstandingly useful as electrode material for oxygen exchange reactions.
Claims19
A mixed conductive oxidic body having a conductivity independent of oxygen pressure consisting of both ionic and electronic conductivity comprising:
- 98 to 25 mole-% of cubic or tetragonal zirconium dioxide;
- 1.5 to 25 mole-% of an oxide stabilizing the zirconium dioxide phase;
- and
- .5 to 50 mole-% of at least one oxide of a metal of Group Va and VIa of the Periodic System of Elements, titanium dioxide or a mixture thereof.
A mixed conductive oxidic body having a conductivity independent of oxygen pressure consisting of both ionic and electronic conductivity comprising:
- 98 to 25 mole-% of cubic or tetragonal zirconium dioxide;
- 1.5 to 25 mole-% of an oxide stabilizing the zirconium dioxide phase;
- and
- .5 to 50 mole-% of titanium dioxide.
Dependencies are inferred from the claim text.