Cut out two carbon-fibre electrodes as shown in the image.
Cut out two pieces of J-Cloth to ?t inside the fuel cell.
Assemble the fuel cell as shown below.
Stand the assembled fuel cell on a Petri dish base or lid, to catch any liquid that may leak from the cell.
Combine equal (5 ml) volumes of the yeast slurry, glucose and methylene blue solutions. Syringe this mixture into one chamber of the fuel cell.
Syringe potassium hexacyanoferrate (III) solution into the other chamber of the cell.
Connect a voltmeter or multimeter (via the crocodile clips) to the electrode terminals. A current should be produced immediately – if the meter registers zero, check the connections and ensure that the carbon-fibre electrodes are not touching the cation exchange membrane
- See more at: http://www.scienceinschool.org/2010/issue14/fuelcell#sthash.X1AB4Vam.dpuf