Département de chimie moléculaire

A biol. fuel cell comprises of a first and second chambers contg. a solvent and a permeable wall sepg. the two chambers, in which a first electrode is in the first chamber and a second electrode is in the second chamber. A first redox cell includes a first oxidant and a first reducing agent that take part in the initial oxido-redn., leasing to an electron exchange with the first electrode. A second redox cell includes a second oxidant and a second reducing agent that takes part in subsequent oxido-redn. reactions, leading to the exchange of electrons with the second electrode. The wall is impermeable with the first and second redox cells. Enzymes or first micro-organisms are present in the first or second chambers and support third oxido-redn. reactions that lead to the transformation of a first substance to provide a second substance in solvent of the first and second chambers. [on SciFinder(R)]