Patent ID: 8349520
Filing Date: 2013-01-08
Classification: H01M,Y02E

Abstract:
1. A method for making a fuel cell catalyst layer, comprising: forming a fuel cell catalyst layer including sulfonated amorphous carbons, a proton conductive polymer electrolyte and platinum catalyst loading carbons; and then creating fine pores in said fuel cell catalyst layer by removing said sulfonated amorphous carbons from said fuel cell catalyst layer, wherein a chemical shift of said sulfonated amorphous carbons indicating carbons of a condensed aromatic 6-membered ring to which sulfonic groups are attached and are not attached respectively is detected in a spectrum of the 13C-NMR, and wherein a diffraction peak signal corresponding to the carbon's (002) plane whose half-value width (20) is 5-30 degree is detected in a spectrum of powder x-ray diffraction of said sulfonated amorphous carbons.