CO Tolerance of Commercial Pt and PtRu Gas Diffusion Electrodes in Polymer Electrolyte Fuel Cells

Fuel Cells ◽  
2004 ◽  
Vol 4 (3) ◽  
pp. 160-168 ◽  
Author(s):  
F. Hajbolouri ◽  
B. Andreaus ◽  
G.G. Scherer ◽  
A. Wokaun
Author(s):  
A. Pozio ◽  
A. Cemmi ◽  
M. Carewska ◽  
C. Paoletti ◽  
F. Zaza

Gas diffusion electrodes (GDEs), applied in polymer electrolyte fuel cells, are composed of a multilayer structure containing porous carbon materials and noble metal catalyst. Gas diffusion layer (GDL), a GDE component, consists of a thin layer of carbon black mixed with an organic binder, frequently polytetrafluoroethylene, which is coated onto a sheet of macroporous carbon backing cloth or paper. GDL serves as a current collector that allows ready access of fuel and oxidant to the anode and the cathode catalyst surfaces, respectively. In this work, a complete GDL state-of-the-art is first presented. Then, the effects of different fabrication methods and composition of gas diffusion layer are investigated and discussed in the light of gas permeability, thermal analysis, morphology, and electrical resistance. Besides, performances in H2/air fed cell at 50°C in different humidity conditions were discussed, and a comparison with own products and commercial GDLs was carried out. It was found that the different preparation methods influence the GDL properties, allowing the most suitable choice depending on the cell humidity conditions.


2010 ◽  
Vol 55 (10) ◽  
pp. 3464-3470 ◽  
Author(s):  
Takeshi Yoda ◽  
Takuya Shimura ◽  
Byungchan Bae ◽  
Kenji Miyatake ◽  
Makoto Uchida ◽  
...  

2011 ◽  
Vol 56 (12) ◽  
pp. 4439-4444 ◽  
Author(s):  
Murat Ünlü ◽  
Junfeng Zhou ◽  
Irene Anestis-Richard ◽  
Hyea Kim ◽  
Paul A. Kohl

2004 ◽  
Vol 72 (4) ◽  
pp. 232-237 ◽  
Author(s):  
Osamu NISHLKAWA ◽  
Kazuo DOYAMA ◽  
Kenji MIYATAKE ◽  
Hiroyuki UCHIDA ◽  
Masahiro WATANABE

2020 ◽  
Vol 97 (7) ◽  
pp. 615-626
Author(s):  
Pablo A. García-Salaberri ◽  
Iryna V. Zenyuk ◽  
Jeff T. Gostick ◽  
Adam Z. Weber

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