August 11, 2008
Plastic-Goretex combo drives
Coat Goretex with a thin layer of electrically
conducting plastic and you get an efficient, inexpensive cathode that
could make vehicle fuel cells economically viable.
The plastic draws electrons back into the fuel cell and combines
them with protons and oxygen to form water -- the second half of a
fuel cell's chemical process for generating electricity from hydrogen.
The Goretex makes a porous scaffold for the cathode, which brings
more oxygen into contact with the plastic.
The cathode is as efficient as the usual platinum-coated cathodes,
but is much less expensive, widely available and isn't degraded by
Rates of Oxygen Reduction over a Vapor Phase–Polymerized PEDOT Electrode
Science, August 1, 2008
of Excellence for Electromaterials Science
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August 11/18, 2008
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