| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a catalyst layer that has good long-term water resistance, and to provide a method of manufacturing a membrane electrode assembly. <P>SOLUTION: The method of manufacturing the catalyst layer includes the steps of: (1) attaching an Si compound comprising Si, -OH bonded to Si or a group that is bonded to Si and becomes -OH by hydrolysis, and a hydrophobic group to a surface of a catalyst precursor layer comprising at least platinum oxide; (2) attaching a mixture comprising a metal compound having a metal atom and -OH bound to the metal atom or a group that is bonded to the metal atom and becomes -OH by hydrolysis and a proton conductive polymer electrolyte to the surface of the catalyst precursor layer to which the Si compound has been attached; and (3) reducing the catalyst precursor layer to which the mixture has been attached. <P>COPYRIGHT: (C)2010,JPO&INPIT |
