Accession Number : AD0743189

Title :   Low Cost Oxygen Electrodes.

Descriptive Note : Interim rept. no. 1, 11 May 71-14 Jan 72,

Corporate Author : UNION CARBIDE CORP CLEVELAND OHIO CONSUMER PRODUCTS DIV

Personal Author(s) : Kordesch,K. V. ; Scarr,R. F.

Report Date : APR 1972

Pagination or Media Count : 76

Abstract : 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 mA/sq 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 Pt/sq 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)

Descriptors :   (*FUEL CELLS, *ELECTRODES), AIR, OXYGEN, CARBON, PLASTIC COATINGS, HALOCARBON PLASTICS, PLATINUM, OXIDES, ZIRCONIUM OXIDES, PHOSPHORIC ACIDS, PERMEABILITY

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE