Microfluidics - Microreactors

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Praxis beispie l:Ausa rbeitu ngsphaA usarbe itungd erStan dard-Z11.5. Micro Fuel Cellsh A fuel cell operates like a battery in principle, producingelectricity by electrochemically combining hydrogen andoxygen without combustion.h Unlike a battery, a fuel cell does not run down as long asfuel is supplied. The Micro Fuel Cell from Energy RelatedDevices is fueled by methanol or ethanol and isconstructed with multiple layers of thin films.h The micro-fuel cell is like the cell of any living thing:‣ Input fuel is a hydrocarbon that is broken down catalytically,producing energy and harmless “waste” products of heat,carbon dioxide, and water vapor.‣ The collection and energy distribution scheme of this microfuelcell system can be likened to the capillaries and veins inan animal.11. <strong>Microreactors</strong>Jens Ducrée and Roland Zengerle
Praxis beispie l:Ausa rbeitu ngsphaA usarbe itungd erStan dard-Z11.5. Micro Fuel Cellsh The alcohol side of the film contains a catalyst that breaksthe alcohol down into hydrogen ions and carbon dioxide.h This generates a negative electrical potential on the alcoholelectrode. The hydrogen ions move through the film to theoxygen electrode on the air side of the cell.h The hydrogen ions combine with oxygen from the air toproduce water vapor.h This produces a positive charge on the oxygen electrode.The oxygen and alcohol electrodes form the positive andnegative terminals of the fuel cell; this is equivalent to thepositive and negative terminals on a conventional battery.11. <strong>Microreactors</strong>Jens Ducrée and Roland Zengerle
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Microfluidics - Microreactors

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