Bio-Energy Kit

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Test a new way to get power from biofuels! Thanks to Bio-Energy Kit is possible to get power using, simply, ethanol blended with water, without any combustion. This kit uses a particular device called Direct Ethanol fuel-cell (DEFC) which allows to provide an alternative source of energy, not toxic and lasting in the time.

This DEFC produces energy when ethanol reacts to the anode of the fuel-cell. Hydrogen protons permeate from ethanol solution through the membrane, releasing electrons which are caught in an external circuit.

At the cathode hydrogen catalytic reaction with the oxygen, which comes out from the environment produces water.

During the reaction, a part of the ethanol is completely oxidized and transformed in CO2, (reaction 3), while a ethanol part not completely oxidized is transformed in acetaldehyde and acetic acid (reaction 1 and 2).

The reactions which happen inside of the fuel-cell are:

 Anode:

  (1) C2H5OH > CH3CHO + 2H+ + 2e-
 (2) C2H5OH + H2O > CH3COOH + 4H+ + 4e-
 (3) C2H5OH + 3H2O > 2CO2 + 12H+ + 12e- 

 

 Cathode:

  4H+ + 4e- + O2 > 2H2O

The electrical energy produced moves a little vent when this is connected directly to the fuel-cell. When the vent slows down or stops, it means the most part of the ethanol in the fuel-cell is used. In normal temperature conditions the most part of the ethanol in the fuel-cell is transformed in acetic acid. This reaction is verifiable measuring pH value of the solution inside of the fuel-cell and confronting with the starting solution contained in the tank of the device.

Bio-Energy Kit can work through pure ethanol or wine or bier.

This kit should only be used by persons 12 years old and up and only under the supervision of an adult.

 

 

- direct ethanol fuel-cell (DEFC) - ethanol and water solution: 10% pure ethanol and 90% distilled water. Ethanol concentration should be between 5 and 15%, concentrations more than 15% could damage the fuel cell.

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