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http://dx.doi.org/10.7316/khnes.2012.23.1.034

Preparation and Characterization for Carbon Composite Gas Diffusion Layer on Polymer Electrolyte Membrane Fuel Cells  

Shim, Joong-Pyo (Department of Nano & Chemical Engineering, Kunsan National University)
Han, Choon-Soo (Department of Nano & Chemical Engineering, Kunsan National University)
Sun, Ho-Jung (Department of Material Science & Engineering, Kunsan National University)
Park, Gyung-Se (Department of Chemistry, Kunsan National University)
Lee, Ji-Jung (Fuel Cell Regional Innovation Center, Woosuk University)
Lee, Hong-Ki (Fuel Cell Regional Innovation Center, Woosuk University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.23, no.1, 2012 , pp. 34-42 More about this Journal
Abstract
Gas diffusion layers (GDLs) of carbon composite type in polymer electrolyte fuel cells were prepared by simple and cheap manufacturing process. To obtain the carbon composite GDLs, carbon black with polymer binder was mixed in solvent, rolled to make sheet, and finally heat-treated at $340^{\circ}C$. The performance of fuel cell using composite GDLs was changed by PTFE content. The physical properties of composite GDLs for pore, conductivity and air permeability were analyzed to compare with the variation of fuel cell performance. The conductivity of composite GDLs was very similar to carbon paper as commercial GDL but pore properties and air flux were considerably different. The porosity, PTFE content and conductivity for composite GDLs did not have an influence on the cell performance much. The increase of pore diameter and air flux led to enhance cell performance.
Keywords
Polymer electrolyte membrane fuel cell; Gas diffusion layer; Carbon composite; Electrode; porosity;
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Times Cited By KSCI : 3  (Citation Analysis)
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