Platinum-free fuel cell may offer cheaper green power

London, Dec 26 (ANI): Chinese scientists have devised new low cost platinum-free fuel cells that promises to offer cheaper green power.These cells use alkali membrane and may make it possible to replace the expensive platinum metal with low cost nickel catalyst.In a standard fuel cell, a platinum catalyst at one electrode breaks down hydrogen into protons and electrons. The protons pass through a proton exchange membrane to a second electrode where they react with oxygen to produce water. The electrons are syphoned off as electric current.These fuel cells have been used by car manufacturers as a potential choice of the internal combustion engine, but due to the use of expensive metal platinum it is yet to be adopted at a larger scale.

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