Electrode catalyst for fuel cell and method for production thereof
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United States of America Patent
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Apr 17, 2007
Grant Date -
Apr 7, 2005
app pub date -
Oct 4, 2004
filing date -
Oct 6, 2003
priority date (Note) -
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Abstract
An electrode catalyst for a fuel cell is provided which excels in catalytic activity and catalytic durability. The electrode catalyst for the fuel cell has noble metal-containing particle deposited on an electroconductive carrier and the noble metal-containing particle possesses a core-shell structure comprising a core part formed of a noble metal alloy and a shell part formed of a noble metal layer different in composition from the core par and formed on the periphery of the core part. This core-shell structure enables the catalytic activity and the catalytic durability of the electrode catalyst to be enhanced simultaneously.
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