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- W21493302 abstract "Electrochemical reactors may be operated as fuel cells to produce electrical power directly, avoiding Carnot cycle inefficiencies. In a fuel cell, costly fuels are ''burned'' to valueless oxidation products. There are a number of exothermic reactions, including the oxidation of ammonia to nitric oxide, that may be performed in a fuel cell thus ''cogenerating'' electric power and valuable products. The oxidation of ammonia to nitric oxide has been investigated at temperatures of about 830/sup 0/C over porous platinum films deposited on the walls of an yttria-stabilized-zirconia (oxygen anion conducting, solid-electrolyte) fuel cell. The rate determining step is conduction of the O/sup 2 -/ anions through the electrolyte which is controlled by the resistance of the external electrical circuit. Fluxed and unfluxed platinum and platinum-rhodium inks have been used to prepared the electrodes. Maximum power densities of 2.75 mW/cm/sup 2/ have been achieved with a conversion of ammonia of 30% and selectivity to nitric oxide of 42%. Selectivities of 97% at conversions of 39% have also been achieved, but at power densities of 0.61 mW/cm/sup 2/. 16 refs., 5 figs." @default.
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- W21493302 date "1984-03-19" @default.
- W21493302 modified "2023-09-26" @default.
- W21493302 title "Cogeneration of electric power and nitric oxide in a solid-electrolyte fuel cell" @default.
- W21493302 hasPublicationYear "1984" @default.
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