Low Cost Oxygen Electrodes.
Interim rept. no. 1, 11 May 71-14 Jan 72,
UNION CARBIDE CORP CLEVELAND OHIO CONSUMER PRODUCTS DIV
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The purpose of the research was the development of a low cost air electrode for medium temperature 130C immobilized phosphoric acid matrix fuel cell. Thin carbon electrode structures were fabricated and catalyzed with the minimum amount of platinum which produced a H2-air cell performance of 0.6-volt cell terminal voltage at 80 mAsq cm, after 500 hours operation. By using special techniques of electrode manufacturing and catalyst application, a reduction of the Pt amount to a level of 1 to 2 mg Ptsq cm was accomplished. A level of electrode performance near to the contract goals has been achieved. Other aspects of this investigation, such as analytical techniques and kinetic studies, are also discussed. Author
- Electric Power Production and Distribution