Showing posts with label Hydrogen. Show all posts
Showing posts with label Hydrogen. Show all posts

Wednesday, January 2, 2013

The Science Behind Hydrogen Hybrid Cars - The Electrolysis of Water

The Electrolysis of water in Hydrogen Hybrid Cars happens when an electric current passes through the water causing the water (H2O) to break down into its two basic elements, oxygen (O2) and hydrogen gas (H2). It's interesting to note that Industrial applications don't use this method of hydrogen production much since they can do it more affordably by getting it out of fossil fuels.
The way this works in Hydrogen Hybrid Cars is by taking an electrical power source and connecting it to two electrodes, or plates, (or multiples of two) usually made out of some kind of stable metal like aluminum or stainless steel, then putting them into the water. If this cell is made correctly then Hydrogen will form on the cathode (metal plate that's negatively charged), and oxygen will form on the anode (metal plate that's positively charged). Since there's two hydrogen molecules to every one oxygen, molecule in water the amount of hydrogen produced is twice that of oxygen and both are in proportion to the electrical charge that runs through the water.