| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new catalyst layer for a polymer electrolyte fuel cell and a transfer sheet. <P>SOLUTION: The catalyst layer for the polymer electrolyte fuel cell is composed of an agglomerate containing catalyst-carried carbon particles and a hydrogen ion conductive polymer electrolyte, and in the agglomerate, a porosity of pores having a pore size of 10-500 nm is 4 to 15%, that of pores having a pore size of 1-50 μm is 7 to 25%, an active surface area per unit weight of catalyst is 450 to 600 cm<SP>2</SP>/mg, and the average particle diameter of the agglomerate is 50 to 200 nm. <P>COPYRIGHT: (C)2010,JPO&INPIT |
