CARBON FIBER OR METHOD FOR PRODUCING THE SAME, AND ELECTRODE OF SOLID POLYMER TYPE FUEL CELL AND SOLID POLYMER TYPE FUEL CELL BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a carbon fiber capable of producing the carbon fiber having a high water content-holding function and the carbon fiber having a wide surface area, and an electrode of a solid polymer type fuel cell by using the carbon fiber produced by such the method.

SOLUTION: This method for producing the carbon fiber is provided by comprising a process of oxidatively polymerizing a compound having an aromatic ring while irradiating ultrasonic wave to form a fibril-formed polymer, and a process of calcinating the fibril-formed polymer to produce the carbon fiber having a three-dimensional continuous structure. The electrode of the solid polymer type fuel cell is provided by consisting of a porous supporting material, the carbon fiber produced by the above method and arranged on the above porous supporting material and a metal catalyst carried by the carbon fiber.

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