Title of article
Influence of properties of gas diffusion layers on the performance of polymer electrolyte-based unitized reversible fuel cells
Author/Authors
Hwang، نويسنده , , Chul Min and Ishida، نويسنده , , Masayoshi and Ito، نويسنده , , Hiroshi and Maeda، نويسنده , , Tetsuhiko and Nakano، نويسنده , , Akihiro and Hasegawa، نويسنده , , Yasuo and Yokoi، نويسنده , , Naoto and Kato، نويسنده , , Atsushi and Yoshida، نويسنده , , Tetsuya، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
14
From page
1740
To page
1753
Abstract
Polymer electrolyte-based unitized reversible fuel cells (URFCs) combine the functionality of a fuel cell and an electrolyzer in a single device. In a URFC, titanium (Ti)-felt is used as a gas diffusion layer (GDL) of the oxygen electrode, whereas typical carbon paper is used as a GDL of the hydrogen electrode. Different samples of Ti-felt with different structural properties (porosity and fiber diameter) and PTFE content were prepared for use as GDLs of the oxygen electrode, and the relation between the properties of the GDL and the fuel cell performance was examined for both fuel cell and electrolysis operation modes. Experimental results showed that the cell with a Ti-felt GDL of 80 μm fiber diameter had the highest round-trip efficiency due to excellent fuel cell operation under relatively high-humidity conditions despite degradation in performance in the electrolysis mode.
Keywords
proton exchange membrane , Unitized reversible fuel cell , Gas diffusion layer , Water management , Titanium felt
Journal title
International Journal of Hydrogen Energy
Serial Year
2011
Journal title
International Journal of Hydrogen Energy
Record number
1664314
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