Fabrication and Characterization of Carbon Fiber Paper for Application of Proton Exchange Membrane Fuel Cells

Abstract:

Using the dry method-prepared polyacrylonitrile based carbon fibers as raw the material, carbon paper applied for proton exchange membrane fuel cells was prepared by the processes of molding, high temperature carbonization, chemical vapor deposition (CVD), and graphitization. The effects of resin carbon content and subsequent heat-treatment process parameters on the properties of carbon paper were studied. The results show that: the resin carbon content is an important factor to affect the density, thickness, through-plane resistivity and porosity of carbon paper. When the resin carbon content is 20%, the thickness of carbon paper is 0.20mm, the density is 0.41g/cm³, and the porosity is 74.5%, in line with requirements of the fuel cell. When the heating time is 4 hours, the porosity is 71.9%.

• Periodical: Materials Science Forum (Volume 787)
• Pages: 407-411
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.787.407
• Online since: April 2014
• Authors: Kai Yang, Zhi Yong Xie, Qi Zhong Huang*, Xian Tang, Rong Hu
• Keywords: Carbon Paper, Chemical Vapor Deposition (CVD), Proton Exchange Membrane Fuel Cell

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