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タイトル: | Catalytic Activities of Pt–Metal Alloys on Oxygen Reduction Reaction in Fluorohydrogenate Ionic Liquid |
著者: | KIATKITTIKUL, Pisit YAMAGUCHI, Jumpei NOHIRA, Toshiyuki https://orcid.org/0000-0002-4053-554X (unconfirmed) HAGIWARA, Rika https://orcid.org/0000-0002-7234-3980 (unconfirmed) |
著者名の別形: | 山口, 純平 野平, 俊之 萩原, 理加 |
キーワード: | Fluorohydrogenate Ionic Liquid Fuel Cell Oxygen Reduction Reaction Pt Alloy |
発行日: | Oct-2016 |
出版者: | Electrochemical Society of Japan |
誌名: | Electrochemistry |
巻: | 84 |
号: | 10 |
開始ページ: | 766 |
終了ページ: | 768 |
抄録: | 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. |
著作権等: | This is an open access article. © 2016 The Electrochemical Society of Japan. |
URI: | http://hdl.handle.net/2433/232595 |
DOI(出版社版): | 10.5796/electrochemistry.84.766 |
出現コレクション: | 学術雑誌掲載論文等 |
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