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Toward Platinum Group Metal-Free Catalysts for Hydrogen/Air Proton-Exchange Membrane Fuel Cells: Catalyst activity in platinum-free substitute cathode and anode materials

Abstract : The status, concepts and challenges toward catalysts free of platinum group metal (pgm) elements for proton-exchange membrane fuel cells (PEMFC) are reviewed. Due to the limited reserves of noble metals in the Earth’s crust, a major challenge for the worldwide development of PEMFC technology is to replace Pt with pgm-free catalysts with sufficient activity and stability. The priority target is the substitution of cathode catalysts (oxygen reduction) that account for more than 80% of pgms in current PEMFCs. Regarding hydrogen oxidation at the anode, ultralow Pt content electrodes have demonstrated good performance, but alternative non-pgm anode catalysts are desirable to increase fuel cell robustness, decrease the H2 purity requirements and ease the transition from H2 derived from natural gas to H2 produced from water and renewable energy sources.
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https://hal.umontpellier.fr/hal-01785176
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Submitted on : Wednesday, March 2, 2022 - 10:28:09 AM
Last modification on : Friday, August 5, 2022 - 10:59:27 AM
Long-term archiving on: : Tuesday, May 31, 2022 - 6:36:01 PM

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Frederic Jaouen, Deborah Jones, Nathan Coutard, Vincent Artero, Peter Strasser, et al.. Toward Platinum Group Metal-Free Catalysts for Hydrogen/Air Proton-Exchange Membrane Fuel Cells: Catalyst activity in platinum-free substitute cathode and anode materials. Johnson Matthey Technology Review, Royston: Johnson Matthey, 2018, 62 (2), pp.231 - 255. ⟨10.1595/205651318X696828⟩. ⟨hal-01785176⟩

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