MANUFACTURING METHOD OF CATALYST LAYER FOR FUEL CELL, AND PERFORMANCE EVALUATION METHOD OF CATALYST LAYER FOR FUEL CELL

摘要

PPROBLEM TO BE SOLVED: To define a high-output range of a catalyst layer for a fuel cell containing a catalyst constituent, an electrolyte material and a carbon carrier to prepare a high-performance catalyst layer for a fuel cell conforming to the range. PSOLUTION: This manufacturing method is used for manufacturing a catalyst layer for a fuel cell containing a catalyst constituent, an electrolyte material and a carbon carrier. The manufacturing method of the catalyst layer for a fuel cell is characterized in that the catalyst layer is prepared so that a ratio of a steam adsorption amount obtained from a steam adsorption isotherm to a nitrogen adsorption amount obtained from a nitrogen adsorption isotherm is set to 1.0-4.0. This evaluation method is used for evaluating performance of a catalyst layer for a fuel cell containing a catalyst constituent, an electrolyte material and a carbon carrier. The performance evaluation of the catalyst layer for a fuel cell is characterized by using, as an index, a ratio of a steam adsorption amount obtained from a steam adsorption isotherm to a nitrogen adsorption amount obtained from a nitrogen adsorption isotherm. PCOPYRIGHT: (C)2010,JPO&INPIT