Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces

Previous study shows that tetra-n-hexylammonium cation (THA+), which is composed of one nitrogen atom and four alkyl chains, increases the activity of the oxygen reduction reaction (ORR) on Pt(111) eight times as high as that of bare Pt(111). We have studied the ORR on Pt single crystal electrodes m...

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Main Authors: Naoya WADA, Tomoaki KUMEDA, Masashi NAKAMURA, Nagahiro HOSHI
Format: Article
Language:English
Published: The Electrochemical Society of Japan 2020-07-01
Series:Electrochemistry
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/electrochemistry/88/4/88_20-00043/_pdf/-char/en
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author Naoya WADA
Tomoaki KUMEDA
Masashi NAKAMURA
Nagahiro HOSHI
author_facet Naoya WADA
Tomoaki KUMEDA
Masashi NAKAMURA
Nagahiro HOSHI
author_sort Naoya WADA
collection DOAJ
description Previous study shows that tetra-n-hexylammonium cation (THA+), which is composed of one nitrogen atom and four alkyl chains, increases the activity of the oxygen reduction reaction (ORR) on Pt(111) eight times as high as that of bare Pt(111). We have studied the ORR on Pt single crystal electrodes modified with alkane to elucidate which part of THA+ contributes to the enhancement of the activity for the ORR. The ORR activity is increased only twice by the modification of Pt(111) with dodecane and hexadecane. Combination of a nitrogen atom and alkyl chains of THA+ plays an important role in enhancing the ORR on Pt electrodes. Dodecane and hexadecane increases the ORR activity on Pt(111) and Pt(110), but they deactivate the ORR on Pt(100) and the high index planes.
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spelling doaj.art-1af1b97792be4d7ba7d01b2c24ca894e2023-01-02T17:33:18ZengThe Electrochemical Society of JapanElectrochemistry2186-24512020-07-0188426526710.5796/electrochemistry.20-00043electrochemistryEffects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt SurfacesNaoya WADA0Tomoaki KUMEDA1Masashi NAKAMURA2Nagahiro HOSHI3Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba UniversityDepartment of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba UniversityDepartment of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba UniversityDepartment of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba UniversityPrevious study shows that tetra-n-hexylammonium cation (THA+), which is composed of one nitrogen atom and four alkyl chains, increases the activity of the oxygen reduction reaction (ORR) on Pt(111) eight times as high as that of bare Pt(111). We have studied the ORR on Pt single crystal electrodes modified with alkane to elucidate which part of THA+ contributes to the enhancement of the activity for the ORR. The ORR activity is increased only twice by the modification of Pt(111) with dodecane and hexadecane. Combination of a nitrogen atom and alkyl chains of THA+ plays an important role in enhancing the ORR on Pt electrodes. Dodecane and hexadecane increases the ORR activity on Pt(111) and Pt(110), but they deactivate the ORR on Pt(100) and the high index planes.https://www.jstage.jst.go.jp/article/electrochemistry/88/4/88_20-00043/_pdf/-char/enhigh index planespt single-crystal electrodesalkaneenhancement of the oxygen reduction reaction
spellingShingle Naoya WADA
Tomoaki KUMEDA
Masashi NAKAMURA
Nagahiro HOSHI
Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
Electrochemistry
high index planes
pt single-crystal electrodes
alkane
enhancement of the oxygen reduction reaction
title Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
title_full Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
title_fullStr Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
title_full_unstemmed Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
title_short Effects of the Alkane on the Oxygen Reduction Reaction on Well-Defined Pt Surfaces
title_sort effects of the alkane on the oxygen reduction reaction on well defined pt surfaces
topic high index planes
pt single-crystal electrodes
alkane
enhancement of the oxygen reduction reaction
url https://www.jstage.jst.go.jp/article/electrochemistry/88/4/88_20-00043/_pdf/-char/en
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AT tomoakikumeda effectsofthealkaneontheoxygenreductionreactiononwelldefinedptsurfaces
AT masashinakamura effectsofthealkaneontheoxygenreductionreactiononwelldefinedptsurfaces
AT nagahirohoshi effectsofthealkaneontheoxygenreductionreactiononwelldefinedptsurfaces