Analysis of Cathode Catalyst Layer Structure and Cell Performance in PEFC

2014 ◽  
Vol 64 (3) ◽  
pp. 305-312 ◽  
Author(s):  
S. Akabori ◽  
K. Suzuki ◽  
Y. Tabe ◽  
T. Chikahisa
Keyword(s):  
Layer Structure ◽  
Catalyst Layer ◽  
Cell Performance ◽  
Cathode Catalyst ◽  
Cathode Catalyst Layer

Structural Effects of Cathode Catalyst Layer on the Performance of PEFC

2011 ◽  
Author(s):  
Hidetoshi Matsuda ◽  
Kazuyoshi Fushinobu ◽  
Atsushi Ohma ◽  
Ken Okazaki
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Layer Structure ◽  
Catalyst Layer ◽  
Strong Relationship ◽  
Gas Diffusion ◽  
Cell Performance ◽  
Cathode Catalyst ◽  
Cathode Catalyst Layer ◽  
Lower Oxygen

The structure of cathode catalyst layer (CCL) has strong relationship with the performance of polymer electrolyte fuel cells (PEFCs). We investigated the relationship between the catalyst layer structure and the cell performance experimentally. Multi-layered CCL is used to investigate the effect of the layer design on the cell performance. Membrane side of CCL works, as a reaction area, more actively than the gas diffusion layer (GDL) side at low relative humidity (RH) due to the lower proton conductivity. On the other hand, when the cathode gas has less oxygen partial pressure at high RH, GDL side is more active than membrane side owing to low diffusivity of oxygen. We suggest that the volumetric catalyst concentration of the CCL membrane side should be higher at low RH, however at high RH with lower oxygen partial pressure in cathode gas, the GDL side should have higher concentration. Simple theoretical model is employed to see the behavior of the reaction distribution in the catalyst layer.

406 Analysis of Cathode Catalyst Layer Structure and Cell Performance in PEFC

2013 ◽  
Vol 2013.52 (0) ◽  
pp. 101-102
Author(s):  
Sho AKABORI ◽  
Kengo SUZUKI ◽  
Yutaka TABE ◽  
Takemi CHIKAHISA
Keyword(s):  
Layer Structure ◽  
Catalyst Layer ◽  
Cell Performance ◽  
Cathode Catalyst ◽  
Cathode Catalyst Layer

Self-humidifying membrane electrode assembly with dual cathode catalyst layer structure prepared by introducing polyvinyl alcohol into the inner layer

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1333-1338 ◽  
Author(s):  
Huagen Liang ◽  
Ruoyu Xu ◽  
Kaicheng Chen ◽  
Chenyang Shen ◽  
Shibin Yin
Keyword(s):  
Layer Structure ◽  
Catalyst Layer ◽  
Membrane Electrode Assembly ◽  
Membrane Electrode ◽  
Cathode Catalyst ◽  
Constant Voltage ◽  
Short Term ◽  
Cathode Catalyst Layer ◽  
Cathode Structure ◽  
Discharge Test

Short-term constant voltage discharge test of the self-humidifying MEAs with different cathode structure at 60 °C and 30 psi under 20% RH.

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