| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a catalytic electrode having an effect of improving in an output when applied to a solid polymer electrolyte fuel cell, etc., and to provide a method of manufacturing a membrane electrode junction (MEA) and a method of manufacturing an electrochemical device. <P>SOLUTION: After a mixture of platinum supporting carbon particulate, etc., a hydrogen ion conductive resin such as Nafion (R), etc. and a solvent such as an alcohol, are applied to conductive porous materials 1, 5 such as carbon paper, etc. having water repellence, the solvent is evaporated at 60-80°C in the atmosphere, and catalyst layers 3, 7 are formed. Then, the catalyst layers 3, 7 are heated at the temperature of 100-140°C and the pressure of 2×10Pa or more in the atmosphere in which an oxygen below oxygen partial pressure or less exists for 0.2-6 hours, and heat treated oxygen pole catalyst layer 3a and fuel electrode catalyst layer 7a are manufactured. Then, a hydrogen ion conduction film 9 is held between the oxygen pole 4 and the fuel pole 8, heated at 100-150°C, press bonded, and the MEA 10 is manufactured. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
