| 发明名称 |
METHOD FOR MAKING LEAD-RICH AND BISMUTH-RICH PYROCHLORE COMPOUNDS USING AN ALKALINE MEDIUM |
| 摘要 |
A liquid solution method of preparing electrically conductive pyrochlore compounds of high surface area, having the formula: A2¢B2-XAX!07-y is disclosed wherein A is selected from lead, bismuth and mixtures thereof, B is selected from ruthenium, iridium and mixtures thereof, O<x<1,0 and O<y<l. The method involves reacting A and B cations to yield a pyrochlore oxide by precipitation of A and B cations from an aqueous solution source of these cations in a liquid alkaline medium having a pH of at least about 13.5 in the presence of an oxygen source at a temperature below about 200.degree.C for a sufficient time for reaction to occur. |
| 申请公布号 |
CA1097482(A) |
申请公布日期 |
1981.03.17 |
| 申请号 |
CA19780316046 |
申请日期 |
1978.11.09 |
| 申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
HOROWITZ, HAROLD S.;LONGO, JOHN M.;LEWANDOWSKI, JOSEPH T. |
| 分类号 |
H01M4/92;B01J23/00;C01G55/00;C25B11/04;C25B11/06;H01M4/90;H01M12/06 |
主分类号 |
H01M4/92 |
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