When it is, an electrochemical reaction takes place between the hydrogen and oxygen that directly converts chemical energy into electrical energy. Various types of fuel cells exist, but the one ...

work in a different way than chemical cells. Fuel cells produce a potential difference continuously, as long as they are supplied with: In a hydrogen-oxygen fuel cell, hydrogen and oxygen are used ...

As workhorses of the cell, proteins compose structural and motor elements in the cell, and they serve as the catalysts for virtually every biochemical reaction that occurs in living things.

The cell produces electricity through chemical reactions between hydrogen peroxide and aluminum. If perfected, such an electricity source could one day replace conventional batteries in many ...