Tuesday, October 14, 2008

How does an electrolyzer produce hydrogen from water?

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An electrolyzer uses an electric current to separate water into its components-hydrogen and oxygen. The electricity enters the water at the cathode, a negatively charged electrode, passes through the water and exists via the anode, the positively charged electrode. The hydrogen is collected at the cathode and oxygen is collected at the anode.


Source
U.S. Department of Energy



How much water is used to make hydrogen?
Electrolysis does not require significant amounts of water. The hydrogen extracted from a gallon of water using a hydrogen generator could drive a hydrogen fuel cell vehicle as far as gasoline vehicles travel today on a gallon of gasoline.

Source
Hydrogenappliances.com

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