{
  "$type": "site.standard.document",
  "description": "A process for producing a membrane-electrode assembly for a polymer electrolyte fuel cell comprising an anode and a cathode each having a catalyst layer, and an ion exchange membrane disposed between them, characterized in that a step of producing at least one of the catalyst layers of the anode…",
  "path": "/patents/1068678",
  "publishedAt": "2006-04-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B82Y30/00",
    "ASAHI GLASS CO LTD [JP]"
  ],
  "textContent": "A process for producing a membrane-electrode assembly for a polymer electrolyte fuel cell comprising an anode and a cathode each having a catalyst layer, and an ion exchange membrane disposed between them, characterized in that a step of producing at least one of the catalyst layers of the anode and cathode, comprises a step of preparing a coating fluid containing an ion exchange polymer and a catalyst having catalytic metal particles dispersed on a carbon support, and a step of forming a catalyst layer by applying the coating fluid on a substrate, wherein the above coating fluid is prepared by using, as the above catalyst, a catalyst wherein the density of total functional groups of OH groups and CO groups at the surface is at most 1.6 × 10-3 (mmol/m 2 ), as obtained from the BET specific surface area and the total molar amount of OH groups and CO groups at the surface obtained by a titration method. A polymer electrolyte fuel cell provided with the membrane-electrode assembly obtained by this method, has a high initial power generation performance and is capable of maintaining a constant output characteristic over a long period of time.",
  "title": "MEMBRANE ELECTRODE ASSEMBLY FOR SOLID POLYMER FUEL CELL AND METHOD FOR PRODUCING SAME"
}