Electrode catalyst for fuel cells, method of preparing the electrode catalyst, and fuel cell including electrode containing the electrode catalyst
AssigneeSamsung Electronics Co., Ltd.
InventorsKyung-jung KWON, Chan-ho PAK, Kang-hee LEE
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Abstract
An electrode catalyst for fuel cells, a method of preparing the electrode catalyst, and a fuel cell including the electrode containing the electrode catalyst have been improved. The electrode catalyst includes a beryllium (Be) oxide catalyst, which oxidizes carbon monoxide included in a fuel gas into carbon dioxide, and a platinum (Pt) based catalyst. Thus, loss in catalytic activity of the Pt-based catalyst due to carbon monoxide is decreased, and the activity and life of the fuel cell including the electrode catalyst are improved.
Claims9
An electrode catalyst for a fuel cell, the electrode catalyst comprising:
- a catalyst support and a mixed catalyst supported on the catalyst support,
- wherein the mixed catalyst comprises a platinum (Pt)-based catalyst and a beryllium (Be) oxide catalyst.
A method of preparing an electrode catalyst for a fuel cell, the method comprising:
- preparing a first dried support by impregnating a support with a first solution in which a beryllium (Be) oxide catalyst precursor is dissolved;
- preparing a second dried support by impregnating the first dried support with a second solution in which a platinum (Pt)-based catalyst precursor is dissolved;
- and
- thermally treating the second dried support in a reducing atmosphere.
Dependencies are inferred from the claim text.