WEKO3
アイテム
{"_buckets": {"deposit": "ae79d8cc-30bd-4425-b245-cd5df092cd8a"}, "_deposit": {"created_by": 6, "id": "27870", "owners": [6], "pid": {"revision_id": 0, "type": "depid", "value": "27870"}, "status": "published"}, "_oai": {"id": "oai:nagasaki-u.repo.nii.ac.jp:00027870", "sets": ["21"]}, "author_link": ["124223", "124222"], "item_2_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2022-06-22", "bibliographicIssueDateType": "Issued"}, "bibliographicPageStart": "116514", "bibliographicVolumeNumber": "919", "bibliographic_titles": [{"bibliographic_title": "Journal of Electroanalytical Chemistry"}]}]}, "item_2_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The structures of organic monolayers immobilized on a metal electrode and their functions depend on the substrate surface chemistry and morphology. A better defined crystalline flat electrode usually provides a structurally more ordered organic monolayer, although the use of a single-crystalline electrode costs more for mass production. Because the monolayer structures at both molecular and mesoscopic levels are critical to the functions of the modified electrode, in-depth experimental studies to clarify the relationship between the functions and the surface morphology of the electrode are crucial. In this work, we compared polycrystalline Au (poly-Au) and single-crystalline Au(1 1 1) electrodes as the substrates for a redox-active, self-assembled monolayer (SAM) of an alkyl-viologen thiol, 1-(10-mercaptodecyl)-1′-methyl-4,4′-bipyridinium dibromide (MeVC10-SH 2Br−). The voltammetric and electroreflectance measurements were performed at a mirror-polished poly-Au electrode and a flame-annealed single-crystalline Au(1 1 1) electrode after their surface modification with a MeVC10-SH monolayer. We found significant differences in the anion effects on the voltammetric behavior between the two substrates, especially in the dependence on anion hydrophobicity. The electroreflectance spectra revealed a tendency that a greater abundance of the viologen radical cation dimers at a Au(1 1 1) than that at a poly-Au. A considerable Br− adsorption at the SAM-modified Au(1 1 1) electrode was observed because of the loose packing of immobilized MeVC10-SH molecules. We discussed the origins of the contrasting behavior resulting from the difference of the surface.", "subitem_description_type": "Abstract"}]}, "item_2_description_63": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "Journal of Electroanalytical Chemistry, 919, art. no. 116514; 2022 ", "subitem_description_type": "Other"}]}, "item_2_publisher_33": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Elsevier B.V."}]}, "item_2_relation_12": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1016/j.jelechem.2022.116514", "subitem_relation_type_select": "DOI"}}]}, "item_2_rights_13": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "© 2022 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/"}]}, "item_2_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "15726657", "subitem_source_identifier_type": "ISSN"}]}, "item_2_version_type_16": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Sagara, Takamasa"}], "nameIdentifiers": [{"nameIdentifier": "124222", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Toyohara, Masaki"}], "nameIdentifiers": [{"nameIdentifier": "124223", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2024-06-22"}], "displaytype": "detail", "download_preview_message": "Download / Preview is available from 2024/6/21.", "file_order": 0, "filename": "JEC919_116514.pdf", "filesize": [{"value": "1.4 MB"}], "format": "application/pdf", "future_date_message": "Download is available from 2024/6/21.", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1400000.0, "url": {"label": "JEC919_116514.pdf", "url": "https://nagasaki-u.repo.nii.ac.jp/record/27870/files/JEC919_116514.pdf"}, "version_id": "0280b1f5-a36c-4cd6-9b3d-eb42a35845c7"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Au electrode substrate", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Electrode surface morphology", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Viologen-thiol monolayer", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Redox reaction", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Anion effect", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Comparison between polycrystalline Au and single-crystalline Au(1 1 1) electrodes as the substrate of a cationic organic monolayer based on their anion dependent redox activities", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Comparison between polycrystalline Au and single-crystalline Au(1 1 1) electrodes as the substrate of a cationic organic monolayer based on their anion dependent redox activities"}]}, "item_type_id": "2", "owner": "6", "path": ["21"], "permalink_uri": "http://hdl.handle.net/10069/00042004", "pubdate": {"attribute_name": "公開日", "attribute_value": "2023-01-26"}, "publish_date": "2023-01-26", "publish_status": "0", "recid": "27870", "relation": {}, "relation_version_is_last": true, "title": ["Comparison between polycrystalline Au and single-crystalline Au(1 1 1) electrodes as the substrate of a cationic organic monolayer based on their anion dependent redox activities"], "weko_shared_id": -1}
Comparison between polycrystalline Au and single-crystalline Au(1 1 1) electrodes as the substrate of a cationic organic monolayer based on their anion dependent redox activities
http://hdl.handle.net/10069/00042004
http://hdl.handle.net/10069/0004200458bb9a7a-2ddb-4784-873a-87427407e815
名前 / ファイル | ライセンス | アクション |
---|---|---|
JEC919_116514.pdf (1.4 MB)
Download is available from 2024/6/21.
|
|
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2023-01-26 | |||||
タイトル | ||||||
タイトル | Comparison between polycrystalline Au and single-crystalline Au(1 1 1) electrodes as the substrate of a cationic organic monolayer based on their anion dependent redox activities | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Au electrode substrate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Electrode surface morphology | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Viologen-thiol monolayer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Redox reaction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Anion effect | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Sagara, Takamasa
× Sagara, Takamasa× Toyohara, Masaki |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The structures of organic monolayers immobilized on a metal electrode and their functions depend on the substrate surface chemistry and morphology. A better defined crystalline flat electrode usually provides a structurally more ordered organic monolayer, although the use of a single-crystalline electrode costs more for mass production. Because the monolayer structures at both molecular and mesoscopic levels are critical to the functions of the modified electrode, in-depth experimental studies to clarify the relationship between the functions and the surface morphology of the electrode are crucial. In this work, we compared polycrystalline Au (poly-Au) and single-crystalline Au(1 1 1) electrodes as the substrates for a redox-active, self-assembled monolayer (SAM) of an alkyl-viologen thiol, 1-(10-mercaptodecyl)-1′-methyl-4,4′-bipyridinium dibromide (MeVC10-SH 2Br−). The voltammetric and electroreflectance measurements were performed at a mirror-polished poly-Au electrode and a flame-annealed single-crystalline Au(1 1 1) electrode after their surface modification with a MeVC10-SH monolayer. We found significant differences in the anion effects on the voltammetric behavior between the two substrates, especially in the dependence on anion hydrophobicity. The electroreflectance spectra revealed a tendency that a greater abundance of the viologen radical cation dimers at a Au(1 1 1) than that at a poly-Au. A considerable Br− adsorption at the SAM-modified Au(1 1 1) electrode was observed because of the loose packing of immobilized MeVC10-SH molecules. We discussed the origins of the contrasting behavior resulting from the difference of the surface. | |||||
書誌情報 |
Journal of Electroanalytical Chemistry 巻 919, p. 116514, 発行日 2022-06-22 |
|||||
出版者 | ||||||
出版者 | Elsevier B.V. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 15726657 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jelechem.2022.116514 | |||||
権利 | ||||||
権利情報 | © 2022 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of Electroanalytical Chemistry, 919, art. no. 116514; 2022 |