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Mechanism of in situ surface modification of molten-carbonate fuel cell anode

✍ Scribed by Gang Xie; Keiko Ema; Yasuhiko Ito

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
471 KB
Volume
35
Category
Article
ISSN
0378-7753

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✦ Synopsis

The performance of the anode of a molten-carbonate fuel cell (MCFC) is improved by the addition of tungstate ion to the electrolyte. This effect is due to reduction of tungstate ion to produce tungsten metal on the porous nickel electrode under a hydrogen atmosphere. The total anode reaction is the sum of the following consecutive reactions: W(0) = W(D) + Ze-and W(H) + Hz + COz2-= W(0) + Hz0 + COP.

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## Abstract A mathematical model based on fluid dynamics and heat‐transfer theories was applied to predict gas dynamic pressure and temperature distribution in a coflow molten carbonate fuel cell (MCFC) stack. The mass balance was simplified to obtain exact solutions with an assumption of uniform c