| 摘要 |
A material of the formula: Bi8-xPxPba-yQyOb, wherein P and Q are each Ag, Au, Cu, Sb, Sn, Zn, Ni, Tl, or V, or any combination thereof, 2.0 </= a </= 8.0, 0.0 </= x < 4.0, 0.0 </= y < 3.5, 17 </= b </= 19, and either x NOTEQUAL 0 or y NOTEQUAL 0, or a NOTEQUAL 4.5 - 5.5. The invention comprises modified bismuth-lead-oxide compounds having ionic conductivity or mixed ionic and electronic conductivity useful for forming oxygen-permeable membranes or similar in particular for use in oxygen separation devices to separate oxygen from gases containing oxygen such as air. |
