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ELECTROCATALYST [1 record]

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Record 1 2017-01-25

English

Subject field(s)
  • Fuel Cells (Electr.)
CONT

This type of fuel cell [Direct Methanol Fuel Cell] is still in the design stages because of the problems of finding a good electrocatalyst to both, transform methanol into carbon dioxide and hydrogen efficiently and to reduce oxygen in the presence of methanol should any transfer through the electrolyte which is in itself a problem.

French

Domaine(s)
  • Piles à combustible (Électricité)
CONT

L'hydrogène (le combustible) est introduit sur l'anode poreuse et, sous l'influence de l'électrocatalyseur, se dissocie pour former des électrons libres et des ions d'hydrogène chargés positivement (cations).

CONT

Pour réduire cette polarisation d'activation à ce niveau, on met en œuvre des «catalyseurs» (ou «électrocatalyseurs») spécifiques. Ils ont pour rôle de faciliter les échanges électroniques lorsque ceux-ci constituent l'étape lente du processus.

Spanish

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