质子交换膜燃料电池用炭纤维纸的制备和表征-中国有色金属学报.PDF

20 7 2010 7 Vol.20 No.7 The Chinese Journal of Nonferrous Metals July 2010 1004-0609(2010)07-1390-06 ( 410083) (PAN) (SEM)X 0.11 mm0.65 g/cm32 000 Pt 0.5 mg/cm2 Core112CCM H2 1.2׃560 500 mA/cm2 0.6 V TM911.4 A Preparation and characterization of carbon fiber paper for application of proton exchange membrane fuel cell XIE Zhi-yong, ZHANG Min, JIN Gu-ying, SU Zhe-an, ZHANG Ming-yu, CHEN Jian-xun, HUANG Qi-zhong (State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: The carbon fiber paper (CFP) was prepared from polyacrylonitrile (PAN) based carbon fiber through impregnation with resin, mould pressing, carbonization and graphitization. The microstructures of CFP perform and resultant CFP were analyzed by SEM. The degree of graphitization of CFPs heat treated at different temperatures was investigated by XRD. The gas permeability and electrical property were measured by differential pressure method and four-probe technique, respectively. The results indicate that the graphitization temperature has larger impact than bulk density on the electrical resistivity of CFP. The gas permeability decreases with the increase of thickness and bulk density of CFP. A suitable CFP with thickness of 0.11 mm, and bulk density of 0.65 g/cm3 is developed. When using Core112CCM with 0.5 mg/cm2 Pt as membrane electrode, the optimum properties of the CFP are achieved by restricting the heat treatment temperatu