Fabrication of the Carbon Paper by Wet-Laying of Ozone-Treated Carbon Fibers with Hydrophilic Functional Groups
Herein we report the fabrication of carbon papers by wet-laying of ozone-treated carbon fibers with hydrophilic functional groups. To improve the dispersion of carbon fibers in water, the surface of carbon fibers was modified by ozone. The surface of ozone-treated carbon fibers contains hydrophilic...
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Published in | ECS transactions Vol. 58; no. 1; pp. 1069 - 1074 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
01.01.2013
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Online Access | Get full text |
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Summary: | Herein we report the fabrication of carbon papers by wet-laying of ozone-treated carbon fibers with hydrophilic functional groups. To improve the dispersion of carbon fibers in water, the surface of carbon fibers was modified by ozone. The surface of ozone-treated carbon fibers contains hydrophilic functional groups such as C-O, C=O and O-C=O, which were characterized by X-ray photoelectron spectroscopy. Such O
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-treated CFs were used to fabricate carbon papers by the wet-laid process because of their high dispersion in water. The carbon paper prepared from ozone-treated CFs has higher gas permeability than that from bare CFs. Moreover, the prepared carbon paper from ozone-treated CFs showed better performance in
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measurement of the single cell than those from bare CFs because of their high gas permeability. |
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ISSN: | 1938-5862 1938-6737 |
DOI: | 10.1149/05801.1069ecst |