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Metallic electroconductive 12CaO 7Al2O3 compound and process for producing the same UPDATE 実績あり

外国特許コード F110003551
整理番号 BE06005WO
掲載日 2011年6月29日
出願国 アメリカ合衆国
出願番号 09493606
公報番号 20090224214
公報番号 7892458
出願日 平成18年11月17日(2006.11.17)
公報発行日 平成21年9月10日(2009.9.10)
公報発行日 平成23年2月22日(2011.2.22)
国際出願番号 JP2006322991
国際公開番号 WO2007060890
国際出願日 平成18年11月17日(2006.11.17)
国際公開日 平成19年5月31日(2007.5.31)
優先権データ
  • 特願2005-339538 (2005.11.24) JP
  • 2006WO-JP322991 (2006.11.17) WO
発明の名称 (英語) Metallic electroconductive 12CaO 7Al2O3 compound and process for producing the same UPDATE 実績あり
発明の概要(英語) (US7892458)
In an electride C12A7 provided by replacing free oxygen in 12CaO.7Al2O3 with electrons, a material having metallic electroconductivity and an electric conductivity of more than 5×102 S/cm at room temperature could not have been produced without difficulties.
An electride 12CaO.7Al2O3, which has metallic electroconductivity and has an electric conductivity of more than 5×102 S/cm at room temperature, can be produced by heat-treating titanium metal vapor and 12CaO.7Al2O3 single crystal, sinter, or thin film at a temperature above 600° C. and below 1,450° C. for less than 240 hours.
Further, thermoelectric field electron release can also be realized using an electron release chip fabricated from the electride.
特許請求の範囲(英語) [claim1]
1. An electride comprising: 12CaO.7Al2O3 compound wherein free oxygen ions contained in cages present in crystals of a 12CaO.7Al2O3 compound are extracted by heat-treating in titanium metal vapor and replaced with two electrons (each represented by e-) per oxygen ion; and the electride substantially represented by [Ca24Al28O64]4+(4e-),
wherein said 12CaO.7Al2O3 compound has an electric conductivity of more than 5 * 102 S/cm and less than 105 S/cm at room temperature, and has metallic electroconductivity in which the electric conductivity increases with a decrease in the temperature.
[claim2]
2. An electride according to claim 1, wherein the electride is used as an electron release material in an electron release element.
  • 発明者/出願人(英語)
  • HOSONO HIDEO
  • KIM SUNGWNG
  • HAYASHI KATSUROU
  • MIYAKAWA MASASHI
  • MATSUISHI SATORU
  • KAMIYA TOSHIO
  • HIRANO MASAHIRO
  • TODA YOSHITAKE
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • C01F007/16D
  • C04B035/44
  • C30B013/00
  • C30B015/00
  • C30B029/22
  • C30B033/02
  • H01B001/08
  • M01P006/40
  • M04B235/32D4
  • M04B235/658R
  • M04B235/660B4D
参考情報 (研究プロジェクト等) ERATO/SORST Exploring and developing applications for active functions utilizing nanostructure embedded in transparent oxides AREA
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