An Introduction to Sediment Microbial Fuel Cells. What is a Fuel Cell?. A fuel cell is a device that generates electricity through a chemical reaction. It is similar to a battery, but unlike a battery the chemicals can be continuously supplied. What is electricity?.
electricity through a chemical reaction.
the chemicals can be continuously supplied
If both substances are in the same solution, then the electrons transfer directly and the energy is dispersed as heat.
Tube filled with electrolyte solution
A solution that can carry ions between the anodic and cathodic chambers.
Two parts to the reaction:
+ H2O CO2 + H+ + electrons
Oxygen + H+ + electrons H2O
C2H4O2 + 2H2O 2CO2 + 4H+ + 4e-
C6H12O6 + 6H2O 6CO2 + 24H+ + 24e-
4O2 + 4H+ + 4e- 4H2O
6O2 + 24H+ + 24e- 12H2O