| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a membrane electrode assembly for a fuel cell containing a catalyst having an excellent catalyst efficiency while being economical. <P>SOLUTION: In the membrane electrode assembly for a fuel cell and the manufacturing method of a fuel cell system containing the above assembly, the membrane electrode assembly contains a catalyst layer arranged on one surface of a polymer electrolyte membrane, and the catalyst layer contains platinum and an alloy catalyst of a transition element, and the catalyst in an electron arrangement of platinum has D-band vacant lattice point of 5d band orbital is larger than 0.3 and 0.45 or smaller. In the manufacturing method of the membrane electrode assembly for the fuel cell, the membrane electrode assembly which contains a catalyst having a very excellent mass activity and with which a performance of the fuel cell can be improved. <P>COPYRIGHT: (C)2009,JPO&INPIT |
