Effects of Nafion impregnation on performances of PEMFC electrodes

0800 Athickness at a Nafion loading of 1.9 mg/cm 2 . Further additions caused deeper penetration of this Nafion film into the catalyst layer increasing the diAusional pathways for the reactant gases. These results correlate well with the mass transport characteristics in O2 and air as well as morphological characteriz- ation of the electrode based on SEM and pore volume distributions. # 1998 Elsevier Science Ltd. All rights reserved

[1]  Edson A. Ticianelli,et al.  Methods to Advance Technology of Proton Exchange Membrane Fuel Cells , 1988 .

[2]  N. Giordano,et al.  Nafion Distribution in Gas Diffusion Electrodes for Solid‐Polymer‐Electrolyte‐Fuel‐Cell Applications , 1992 .

[3]  H. Dhar,et al.  On solid polymer fuel cells , 1993 .

[4]  Michael B. Cutlip,et al.  Voltage Losses in Fuel Cell Cathodes , 1980 .

[5]  J. Giner,et al.  The Mechanism of Operation of the Teflon‐Bonded Gas Diffusion Electrode: A Mathematical Model , 1969 .

[6]  G. Maggio,et al.  Solid polymer electrolyte fuel cell (SPEFC) research and development at the institute CNR-TAE of messina , 1994 .

[7]  Y. Hishinuma,et al.  Phosphoric Acid Absorption and Performance of Gas Diffusion Electrode , 1986 .

[8]  E. Barrett,et al.  (CONTRIBUTION FROM THE MULTIPLE FELLOWSHIP OF BAUGH AND SONS COMPANY, MELLOX INSTITUTE) The Determination of Pore Volume and Area Distributions in Porous Substances. I. Computations from Nitrogen Isotherms , 1951 .

[9]  M. Watanabe,et al.  New preparation method of a high performance gas diffusion electrode working at 100 % utilization of catalyst clusters and analysis of the reaction layer , 1986 .

[10]  C. Wan,et al.  Effect of structure on porous gas-diffusion electrodes for phosphoric acid fuel cells , 1994 .

[11]  Yuko Aoyama,et al.  Investigation of the Microstructure in the Catalyst Layer and Effects of Both Perfluorosulfonate Ionomer and PTFE‐Loaded Carbon on the Catalyst Layer of Polymer Electrolyte Fuel Cells , 1995 .

[12]  Masahiro Watanabe,et al.  Experimental analysis of the reaction layer structure in a gas diffusion electrode , 1985 .

[13]  Yuko Aoyama,et al.  New Preparation Method for Polymer-Electrolyte Fuel-Cells , 1995 .

[14]  T. E. Springer,et al.  Electrical Impedance of a Pore Wall for the Flooded‐Agglomerate Model of Porous Gas‐Diffusion Electrodes , 1989 .

[15]  Edson A. Ticianelli,et al.  Localization of platinum in low catalyst loading electrodes to to attain high power densities in SPE fuel cells , 1988 .