| 摘要 |
<p>A 12CaO . 7Al2O3 compound, characterized in that it clathrates O2- ion radical and/or O- ion radical in a concentration of 1020 cm-3 or more: and a method for preparing the compound, characterized in that a mixed raw material containing calcium (Ca) and aluminum (Al) at an atomic equivalent ratio of 12:14 is subjected to a solid-phase reaction, at a firing temperature of 1200ºC or higher and less than 1415 °C, and in a dry and oxidizing atmosphere wherein partial pressures of steam and oxygen are 102 Pa or less and 104 Pa or more, respectively. The compound is used in applications such as an oxidizing catalyst, an antibacterial agent, an ion conduction material and an electrode for a solid electrolyte fuel cell.</p> |
