Context
Fuel cells using enzymes and biofilms as catalysts
Article REF: RE89 V1
Context
Fuel cells using enzymes and biofilms as catalysts

Authors : Damien FÉRON, Alain BERGEL

Publication date: January 10, 2008 | Lire en français

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1. Context

Damien FÉRON is a senior expert at CEA-Saclay's Corrosion and Environmental Behavior Department.

Alain BERGEL is Director of Research at the CNRS-INPT Chemical Engineering Laboratory in Toulouse, part of the École Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques (ENSIACET).

A fuel cell generates electricity by oxidizing a fuel at the anode and reducing an oxidant at the cathode. The most popular fuel cells exploit the oxidation of hydrogen at the anode and the reduction of oxygen at the cathode . The performance of a fuel cell is directly correlated to the speed of electrochemical reactions at each electrode. Catalysts, often platinum-based, are required to accelerate electrode reactions. Their cost is a major obstacle to the development of affordable batteries....

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