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The principle of the fuel cell was demonstrated in 1839 by Sir William Grove. He carried out the reverse electrolysis of water reaction by the use of porous platinum electrodes with sulphuric acid as the electrolyte.
Following its discovery, interest in the technology was very patchy. The fuel cell, an old application known for its reliability, has been in use for a considerable period of time in the field of aerospace.
Environmental concerns, however, have caused attention to be focused on the cell once more.
This means that the fuel cell will have taken more than a century to move from the invention stage to that of innovation.
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