Dr. Nagi Hatoum, M.D., M.S.E.E.
Biotele L.L.C.

June 13 2007

SODA CAN HYDROGEN GENERATOR

 

             
                       
                   


 

 

This is inspired from Jerry M. Woodall's experiment  at Purdue University. The Purdue University team used an alloy of Aluminum and Gallium. The idea is that Gallium stops the Aluminum from forming an oxide layer. The oxide layer prevents the reaction of Aluminum with water to form Hydrogen.

 

The reaction is (3) H2O + (2) Al = (3) H2 + Al2O3

 

In the above experiment, liquid metal, which was bought on Ebay, is used as a source of Gallium. Liquid metal is an alloy of Gallium, Indium, and Tin and is non-toxic.

 

 

Steps:

  1. Cut a piece of Aluminum from a soda can
  2. Scrap or sand the plastic layer to get a shiny surface
  3. Add a drop of liquid metal to the shiny surface and rub it in
  4. Drop the treated Aluminum strip in water

 

 

Instant Hydrogen!

 

See it on Instructables