Influence of properties of gas diffusion layers on the performance of polymer electrolyte-based unit
By C. Hwang, M. Ishida, Hiroshi Ito, T. Maeda, A. Nakano, Y. Hasegawa, Naoto Yokoi, A. Kato, T. Yoshida. 2011
158 citations recorded by the source corpus.
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.
Subfields: Electrical and Electronic Engineering, Materials Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/f07772f6fc2ebf3f52afdc92e6c1928889387e54
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In Electrical and Electronic Engineering
In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Experimentalstudy on porouscurrentcollectors of PEMelectrolyzers (2012, methodology): “[8] carried out electrolysis experiments using unitized reversible fuel cells (URFCs) with different Ti-felt current collectors, and concluded that when the mean pore diameter (MPD) of a porous current collector is smaller than about 60 μm, electrolysis performance is not noticeably affected by chan”