SUPPORT FOR POLYMER ELECTROLYTE FUEL CELL CATALYST, METHOD OF PRODUCING SUPPORT FOR POLYMER ELECTROLYTE FUEL CELL CATALYST, CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL, AND FUEL CELL

摘要

A solid polymer-type fuel cell catalyst carrier which satisfies the following requirements (A), (B), (C), and (D), a method for manufacturing the same, a catalyst layer for a solid polymer-type fuel cell, and a fuel cell. (A) The specific surface area according to a BET analysis of a nitrogen adsorption isotherm is 450 to 1500 m2/g. (B) A nitrogen adsorption-desorption isotherm forms a hysteresis loop in a range of relative pressure P/P0 = more than 0.47 to 0.90, where the area ?S0.47-0.9 of the hysteresis loop is 1 to 35 mL/g. (C) The relative pressure Pclose/P0 at which the hysteresis loop is closed is more than 0.47 to 0.70. (D) The half-value width of G-band detected in a range of 1500 to 1700 cm-1 according to Raman spectrometry is 45 to 75 cm-1.