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Abstract

A Nafion emulsion method for fuel cell membrane-electrode-assembly (MEA) preparation was reported for the first time in this paper. 5 %(by mass) Nafion alcohol solution and non-polar solvent (e.g., cyclohexane) were ultrasonicallymixed to produce Nafion emulsion. The catalyst ink prepared using the thus-obtained Nafion emulsion can be directly cast onto Nafion membrane to make MEA. This method is simple in operation, and effectively preventsthe Nafion membrane swelling, hence is suitable for large-scale application. The MEA thus-prepared showed comparable catalyst efficiencywith respect to the popular transfer-method, and the preliminary performance in room-temperature H_(2)/O_(2 )fuel cell test was satisfying.

Keywords

Nafion, Emulsion, Non-polar solvent, Fuel cell, MEA

Publication Date

2005-08-28

Online Available Date

2005-08-28

Revised Date

2005-08-28

Received Date

2005-08-28

References

[1]Ticianelli E,Derouin C,Srinivasan S.Localization ofplatinum in lowcatalyst loading electrodes to attain highpower densities in SPE fuel cells[J].J.Electroanal.Chem.,1988,251:275~295.
[2]Wilson M,Gottesfeld S.High-performance catalyzedmembranes of ultra-low Pt loadings for polymer electro-lyte fuel-cells[J].J.Electrochem.Soc.,1992,139:L28~L30.
[3]Wilson M,Gottersfeld S.Thin-film catalyst layers forpolymer electrolyte fuel cell electrodes[J].J.Appl.Electrochem.,1992,22:1~7.
[4]Springer T,Wilson M,Gottesfeld S.Modeling and ex-perimental diagnostics in polymer electrolyte fuel cells[J].J.Electrochem.Soc.,1993,140:3 513~3 526.
[5]Chun Y G,Kim C S,Peck D H,et al.Performance of apolymer electrolyte membrane fuel cell with thin filmcatalyst electrodes[J].J.Power Sources,1998,71:174~178.
[6]G櫣lzow E,Kaz T.New results of PEFC electrodes pro-duced by the DLR dry preparation technique[J].J.Power Sources,2002,106:122~125.
[7]G櫣lzow E,Schulze M,Wagner N,et al.Dry layerpreparation and characterization of polymer electrolytefuel cell components[J].J.Power Sources,2000,86:352~362.
[8]Uchida M.,Fukuoka Y,Sugawara Y,et al.Improvedpreparation process of very-low-platinum-loading elec-trodes for polymer electrolyte fuel cells[J].J.Electro-chem.Soc.,1998,145:3 708~3 713.
[9]Shin S J,Lee J K,Ha HY,et al.Effect of the catalyticink preparation method on the performance of polymerelectrolyte membrane fuel cells[J].J.Power Sources,2002,106:146~152.
[10]Uchida M,Aoyama Y,Eda N,et al.Newpreparationmethod for polymer-electrolyte fuel-cells[J].J.Elec-trochem.Soc.,1995,142:463~468.

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