Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode
To explore the effect of the presence of a self-assembled monolayer (SAM) of an alkyl thiol derivative as an underlayer of a Nafion film, redox reaction of methyl viologen (MV) at the Au/SAM/Nafion (1 µm-thick) interface was characterized using the results of the voltammetric and electroreflectance...
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Format: | Article |
Language: | English |
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The Electrochemical Society of Japan
2021-03-01
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Series: | Electrochemistry |
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Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/89/2/89_20-00132/_pdf/-char/en |
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author | Tatsuya AYABE Takamasa SAGARA |
author_facet | Tatsuya AYABE Takamasa SAGARA |
author_sort | Tatsuya AYABE |
collection | DOAJ |
description | To explore the effect of the presence of a self-assembled monolayer (SAM) of an alkyl thiol derivative as an underlayer of a Nafion film, redox reaction of methyl viologen (MV) at the Au/SAM/Nafion (1 µm-thick) interface was characterized using the results of the voltammetric and electroreflectance measurements. The perfluorinated SAM slowed the kinetics of the interfacial electron transfer process compared to a Au/Nafion electrode, whereas 1-dodecanethiol SAM accelerated it. However, both the SAMs decreased the voltammetric current by half. Importance of the approach to underlay a SAM was discussed. |
first_indexed | 2024-04-11T02:53:47Z |
format | Article |
id | doaj.art-20169c179f074af792c5f79d4fc829c5 |
institution | Directory Open Access Journal |
issn | 2186-2451 |
language | English |
last_indexed | 2024-04-11T02:53:47Z |
publishDate | 2021-03-01 |
publisher | The Electrochemical Society of Japan |
record_format | Article |
series | Electrochemistry |
spelling | doaj.art-20169c179f074af792c5f79d4fc829c52023-01-02T15:30:36ZengThe Electrochemical Society of JapanElectrochemistry2186-24512021-03-0189213113310.5796/electrochemistry.20-00132electrochemistryEffect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au ElectrodeTatsuya AYABE0Takamasa SAGARA1Department of Advanced Technology and Science for Sustainable Development, Graduate School of Engineering, Nagasaki UniversityDivision of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki UniversityTo explore the effect of the presence of a self-assembled monolayer (SAM) of an alkyl thiol derivative as an underlayer of a Nafion film, redox reaction of methyl viologen (MV) at the Au/SAM/Nafion (1 µm-thick) interface was characterized using the results of the voltammetric and electroreflectance measurements. The perfluorinated SAM slowed the kinetics of the interfacial electron transfer process compared to a Au/Nafion electrode, whereas 1-dodecanethiol SAM accelerated it. However, both the SAMs decreased the voltammetric current by half. Importance of the approach to underlay a SAM was discussed.https://www.jstage.jst.go.jp/article/electrochemistry/89/2/89_20-00132/_pdf/-char/enmethyl viologenself-assembled monolayernafion filmelectroreflectance |
spellingShingle | Tatsuya AYABE Takamasa SAGARA Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode Electrochemistry methyl viologen self-assembled monolayer nafion film electroreflectance |
title | Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode |
title_full | Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode |
title_fullStr | Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode |
title_full_unstemmed | Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode |
title_short | Effect of an Underlying Monolayer of a Nafion Film upon Redox Reaction of Methyl Viologen on a Au Electrode |
title_sort | effect of an underlying monolayer of a nafion film upon redox reaction of methyl viologen on a au electrode |
topic | methyl viologen self-assembled monolayer nafion film electroreflectance |
url | https://www.jstage.jst.go.jp/article/electrochemistry/89/2/89_20-00132/_pdf/-char/en |
work_keys_str_mv | AT tatsuyaayabe effectofanunderlyingmonolayerofanafionfilmuponredoxreactionofmethylviologenonaauelectrode AT takamasasagara effectofanunderlyingmonolayerofanafionfilmuponredoxreactionofmethylviologenonaauelectrode |