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Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium and a reaction enhancing anodic potential
Method of making lead-rich and bismuth-rich pyrochlore compounds using an alkaline medium and a reaction enhancing anodic potential
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机译:使用碱性介质和增强反应的阳极电位制备富铅和富铋的烧绿石化合物的方法
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摘要
A liquid solution method of preparing electrically conductive pyrochlore compounds of high surface area, having the formula: ##EQU1## is disclosed wherein A is selected from lead, bismuth and mixtures thereof, B is selected from ruthenium, iridium and mixtures thereof, 0 ×≦1.0 and 0≦y≦1. 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 10.0 in the presence of an oxygen source, and in the presence of a reaction-enhancing anodic potential, at a temperature below about 200° C. for a sufficient time for reaction to occur.
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