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Catalytic Activities of Pt–Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2016 Japan Publisher:The Electrochemical Society of JapanJournal:Electrochemistry, volume 84, pages 766-768 (issn: 1344-3542, eissn: 2186-2451,

Authors: KIATKITTIKUL, Pisit; YAMAGUCHI, Jumpei; NOHIRA, Toshiyuki; HAGIWARA, Rika;

doi: 10.5796/electrochemistry.84.766

handle: 2433/232595

Catalytic Activities of Pt–Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid

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Abstract

Oxygen reduction reaction (ORR) rate constants (k) on Pt and Pt-M (M = Fe, Co, Ni) electrodes were evaluated in N-ethyl-N-methylpyrrolidinium fluorohydrogenate (EMPyr(FH)1.7F) ionic liquid at 298-333K. The Pt-Fe electrode exhibited the best catalytic activity in EMPyr(FH)1.7F, because of the large surface area of its nanoporous structure after Fe dissolution. X-ray photoelectron spectroscopy and field-emission scanning electron microscopy showed that Co and Ni barely dissolved in EMPyr(FH)1.7F. The observed ORR activities of Pt-Co and Pt-Ni alloys were lower than that of Pt in EMPyr(FH)1.7F.

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Japan

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Kyoto University
Japan

Keywords

Fuel Cell, Fluorohydrogenate Ionic Liquid, Pt Alloy, Oxygen Reduction Reaction

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Catalytic Activities of Pt&ndash;Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid

Catalytic Activities of Pt&ndash;Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid

1 Research products, page 1 of 1

Nonhumidified Fuel Cells Using N-Ethyl-N-methyl-pyrrolidinium Fluorohydrogenate Ionic Liquid-poly(Vinylidene Fluoride-Hexafluoropropylene) Composite Membranes

Catalytic Activities of Pt–Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid

Catalytic Activities of Pt–Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid