Pt/CeO2/CONDUCTIVE CARBON NANOHETEROANODE MATERIAL AND PROCESS FOR PRODUCING THE SAME

WIPO Patent Application WO/2006/006739

A1

Conventional Pt/secondary component/conductive carbon anode materials for use in solid electrolytes for polymer fuel cell, various sensors, etc. have had difficult problems in some aspects, such as CO oxidation activity and cost. It is intended to provide a Pt/CeO₂/conductive carbon nanoheteroanode material that is free from such problems and to provide a process for producing the same. As a result of intensive studies with a view toward solving the above problems of the prior art, it has been found that an inexpensive anode material with very high electrode activity can be produced by regulating the particle size of ceria (CeO₂) to nano size and causing an electrode active material having nano-size Pt supported on this CeO₂ to be dispersed on conductive carbon. Based on the finding, there has been completed a Pt/CeO₂/conductive carbon nanoheteroanode for polymer fuel cell.

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MORI TOSHIYUKI (JP)
TAKAHASHI MOTOI (JP)
VINU AJAYAN (JP)
NISHIMURA CHIKASHI (JP)

PCT/JP2005/013433

January 19, 2006

July 14, 2005

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NAT INST FOR MATERIALS SCIENCE (JP)
MORI TOSHIYUKI (JP)
TAKAHASHI MOTOI (JP)
VINU AJAYAN (JP)
NISHIMURA CHIKASHI (JP)

H01M4/90; H01M4/88; H01M8/10

JP2003080077A	2003-03-18
JP2004197130A	2004-07-15
JP2003020224A	2003-01-24
JP2004076084A	2004-03-11
JP2004146223A	2004-05-20
JP2004327074A	2004-11-18

Moritake, Yoshiaki (Kita-yaesu Bldg. 3rd Floor, 2-11,, Nihonbashi 3-Chome,, Chuo-K, Tokyo 27, JP)

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