What Is a Fuel Cell? ............................ A fuel cell is an electrochemical device in which the chemical energy of hydrogen and oxygen is converted into electrical energy, discovered in 1839 by Sir William Grove, a Welsh physician. The chemical reaction in a fuel cell is the opposite of electrolysis, in which electrical current is passed through water in order to break it into its components, hydrogen and oxygen. Energy can be retrieved by allowing hydrogen and oxygen to reunite in a fuel cell. It is important to note that while hydrogen can be used as a fuel, it is not an energy source. Instead, hydrogen is only an energy carrier, as energy must be expended to generate the hydrogen and store it so it can be used as a fuel.
Posted on: Sat, 01 Feb 2014 07:24:12 +0000
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