Title:
PROTON CONDUCTIVE MATERIAL, PROCESS FOR PRODUCING THE SAME, HYDROGEN CONCENTRATION CELL, HYDROGEN SENSOR AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2007/060748
Kind Code:
A1
Abstract:
A proton conductive material that can operate over a low temperature range to
a middle temperature range, being produced easily at low cost; a process for producing
the same; and, having the proton conductive material mounted thereon, a hydrogen
concentration cell, hydrogen sensor and fuel cell. There is provided a proton
conductive material characterized by containing calcium, sulfur and hydrogen
elements and exhibiting a proton conductivity of 10-6 S/cm or higher
at room temperature. The proton conductive material can contain, in terms of
oxide, 10 to 45 wt.% of CaO, 15 to 60 wt.% of SO3 and 5 to 55 wt.% of H2O.
Further, 0.1 to 50 wt.% of P2O5 can be contained.
Inventors:
ABE YOSHIHIRO (JP)
NISHIZAKI SAYAKA (JP)
MUROI TOSHIYUKI (JP)
TAKAHASHI SHIGEAKI (JP)
NISHIZAKI SAYAKA (JP)
MUROI TOSHIYUKI (JP)
TAKAHASHI SHIGEAKI (JP)
Application Number:
PCT/JP2005/021943
Publication Date:
May 31, 2007
Filing Date:
November 22, 2005
Export Citation:
Assignee:
AKECHI CERAMICS KK (JP)
ABE YOSHIHIRO (JP)
NISHIZAKI SAYAKA (JP)
MUROI TOSHIYUKI (JP)
TAKAHASHI SHIGEAKI (JP)
ABE YOSHIHIRO (JP)
NISHIZAKI SAYAKA (JP)
MUROI TOSHIYUKI (JP)
TAKAHASHI SHIGEAKI (JP)
International Classes:
G01N27/409; H01B1/06; G01N27/416; H01B13/00; H01M8/02
Domestic Patent References:
| WO1999062620A1 | 1999-12-09 | |||
| WO2000045447A2 | 2000-08-03 |
Foreign References:
| US4184751A | 1980-01-22 | |||
| JPH11339820A | 1999-12-10 | |||
| JP2002100380A | 2002-04-05 | |||
| JP2003217339A | 2003-07-31 | |||
| JP2005255442A | 2005-09-22 | |||
| JPH1067558A | 1998-03-10 | |||
| JP2005332610A | 2005-12-02 | |||
| JPH02226609A | 1990-09-10 |
Other References:
None
See also references of EP 1953765A4
See also references of EP 1953765A4
Attorney, Agent or Firm:
OHKAWA, Hiroshi (Nakamura-ku Nagoya-sh, Aichi 02, JP)
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