Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 20, Issue 5, Pages 3440-3445Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.12.032
Keywords
Polyacrylonitrile; Carbon fiber paper; Fibrid; Ultrafine fiber; Gas diffusion layer
Funding
- Korea CCS R&D Center (KCRC) - Korea Government
- Ministry of Knowledge Economy, Korea
- Korea Evaluation Institute of Industrial Technology (KEIT) [KIAT-tanso-0009, KIAT-TANSO-0009] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Polyacrylonitrile (PAN)-based carbon fiber papers (CFPs) intended for use as gas diffusion layers in proton exchange membrane fuel cells were prepared, and the morphological, physical, mechanical, and electrical properties of the CFPs were investigated. Ultrafine PAN fiber additives in the CFPs form cross-links between the carbon fibers, increasing the bulk densities of the CFPs and improving their mechanical and electrical properties. The binding force of the CFPs increased with the addition of fibrid additives, but the overall tensile strength decreased below the critical value. The surface resistivity of the CFPs increased with increasing fibrid content though the surface density was held constant. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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