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      A review on non-precious metal electrocatalysts for PEM fuel cells

      , , , ,  
      Energy & Environmental Science
      Royal Society of Chemistry (RSC)

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          High-performance electrocatalysts for oxygen reduction derived from polyaniline, iron, and cobalt.

          The prohibitive cost of platinum for catalyzing the cathodic oxygen reduction reaction (ORR) has hampered the widespread use of polymer electrolyte fuel cells. We describe a family of non-precious metal catalysts that approach the performance of platinum-based systems at a cost sustainable for high-power fuel cell applications, possibly including automotive power. The approach uses polyaniline as a precursor to a carbon-nitrogen template for high-temperature synthesis of catalysts incorporating iron and cobalt. The most active materials in the group catalyze the ORR at potentials within ~60 millivolts of that delivered by state-of-the-art carbon-supported platinum, combining their high activity with remarkable performance stability for non-precious metal catalysts (700 hours at a fuel cell voltage of 0.4 volts) as well as excellent four-electron selectivity (hydrogen peroxide yield <1.0%).
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            Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs

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              A New Fuel Cell Cathode Catalyst

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                Author and article information

                Journal
                EESNBY
                Energy & Environmental Science
                Energy Environ. Sci.
                Royal Society of Chemistry (RSC)
                1754-5692
                1754-5706
                2011
                2011
                : 4
                : 9
                : 3167
                Article
                10.1039/c0ee00558d
                cfe35046-6840-4483-8eba-055e11a53f90
                © 2011
                History

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