Friday, February 27, 2015

Bringing clean energy a step closer

Researchers have made an inexpensive metal-free catalyst that performs as well as costly metal catalysts at speeding the oxygen reduction reaction in an acidic fuel cell, and is more durable. The catalyst is made of sheets of nitrogen-doped graphene that provides great surface area, carbon nanotubes that enhance conductivity, and carbon black particles that separate the layers allowing the electrolyte and oxygen to flow freely, which greatly increased performance and efficiency.



from Geochemistry News -- ScienceDaily http://ift.tt/1G1l7IF

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