Top > Search of International Patents > Hydrogen-containing electrically conductive inorganic compound

Hydrogen-containing electrically conductive inorganic compound achieved

Foreign code F110003900
File No. E06013EP
Posted date Jul 6, 2011
Country EPO
Application number 03717660
Gazette No. 1500631
Gazette No. 1500631
Date of filing Apr 18, 2003
Gazette Date Jan 26, 2005
Gazette Date Aug 2, 2017
International application number JP2003005016
International publication number WO2003089373
Date of international filing Apr 18, 2003
Date of international publication Oct 30, 2003
Priority data
  • P2002-117314 (Apr 19, 2002) JP
  • 2003WO-JP05016 (Apr 18, 2003) WO
Title Hydrogen-containing electrically conductive inorganic compound achieved
Abstract (EP1500631)
Disclosed is a 12CaO . 7Al2O3 compound, a 12SrO . 7Al2O3 compound, or a mixed crystal compound of 12CaO . 7Al2O3 and 12SrO . 7Al2O3, which contains a negative hydrogen ion (H<->, H<2->, H2<->) at a concentration of 1 x 10<18> cm<-3> or more.
A negative hydrogen ion comprising a primary component of a hydride ion is incorporated into C12A7 (12CaO . 7Al2O3), so that a function of being converted from an insulative material to an electrically conductive material in a sustained manner by means of irradiation with light can be exhibited even in the normal atmosphere at a room temperature.
The present invention also provides a solid electrolyte capable of conducting a negative hydrogen ion, and means for releasing a hydride ion from the inside of a solid into a gaseous phase using an electric field. <IMAGE>
Scope of claims [claim1]
1. A 12CaO ⋅ 7Al2 O3 compound, which incorporates a negative hydrogen ion (H**- , H**2- , H2 **- ) at a concentration of 1 X 10**18 cm**-3 or more.
[claim2]
2. A 12SrO ⋅ 7Al2 O3 compound, which incorporates a negative hydrogen ion (H**- , H**2- , H2 **- ) at a concentration of 1 X 10**18 cm**-3 or more.
[claim3]
3. A mixed crystal compound of 12CaO ⋅ 7Al2 O3 and 12SrO ⋅ 7Al2 O3 , which incorporates a negative hydrogen ion (H**- , H**2- , H2 **- ) at a concentration of 1 X 10**18 cm**-3 or more.
[claim4]
4. The compound as defined in either one of claims 1 to 3, which has an electronic conductance equivalent to an electric conductivity of 10**-5 Scm**-1 or more.
[claim5]
5. The compound as defined in either one of claims 1 to 3, which exhibits a sustained increase in electronic conductivity by means of irradiation with ultraviolet ray or X-ray.
[claim6]
6. The compound as defined in either one of claims 1 to 3, which has an ionic conductance derived from the negative hydrogen ion (H**- , H**2- , H2 **- ).
[claim7]
7. A method of producing the compound as defined in either one of claims 1 to 3, comprising subjecting either one selected from the group consisting of a 12CaO ⋅ 7Al2 O3 compound, a 12SrO ⋅ 7Al2 O3 compound, and a mixed crystal compound of 12CaO ⋅ 7Al2 O3 and 12SrO ⋅ 7Al2 O3 to a heat treatment at a temperature of 800 DEG.C or more in an atmosphere containing 1000 ppm or more of hydrogen, to thereby clathrate a negative hydrogen ion (H**- , H**2- , H2 **- ) into said selected compound at a concentration of 1 X 10**18 cm**-3 or more.
[claim8]
8. A transparent electrode or wiring, which is formed using the compound as defined in claim 4 or 5.
[claim9]
9. An optically writable and erasable 3-dimensional electronic circuit and 3-dimensional storage element, which is formed using the compound as defined in claim 5.
[claim10]
10. A negative hydrogen ion (H**- , H**2- , H2 **- )-conducting solid-electrolyte, which is formed using the compound as defined in claim 6.
[claim11]
11. A method of generating a negative hydrogen ion or hydrogen gas, comprising applying a given voltage to the compound as defined in either one of claims 1 to 3, to thereby extract a negative hydrogen ion from said compound.
  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • HOSONO HIDEO
  • HIRANO MASAHIRO
  • HAYASHI KATSURO
IPC(International Patent Classification)
Reference ( R and D project ) ERATO HOSONO Transparent ElectroActive Materials AREA
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close