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Adsorption Properties of Fuel-Cell Electrode Produced from Activated Carbon Fibers in Three Phase Distribution  

박수진 (한국화학연구원 화학소재연구부)
정효진 (한국화학연구원 화학소재연구부)
나창운 (전북대학교 고분자공학과)
Publication Information
Polymer(Korea) / v.27, no.1, 2003 , pp. 46-51 More about this Journal
Abstract
In this work, the electrode far fuel cell was fabricated by mixing carbon blacks with activated carbon fibers (ACFs) in order to form the proper three phase distribution, and then the change of electrode in three phase distribution was investigated. Pt loading yield with ACF content and Pt particle size were determined by AAS and XRD measurements, respectively. And the pore structures, including specific surface area ($S_{BET}$), microporosity, and pore size distribution (PSD) for each electrode were systematically investigated by BET volumetric measurement. The morphology of electrode in three phase distribution was determined by SEM. As an experimental result, it was observed that Pt loading yield was not influenced on the content of ACF. While, the electrode in three phase distribution was largely improved in the case of 30% ACF addition on carbon blacks. These results were probably explained by the increase of the portion of micropores, resulting in increasing the active sites of catalyst.
Keywords
electrode; activated carbon fibers; three phase distribution; adsorption;
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