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Comparative Study of Direct and Graphite-Mediated Oxidation of Large PAHs
https://oist.repo.nii.ac.jp/records/2028
https://oist.repo.nii.ac.jp/records/202875de930b-4d46-4651-b702-d266d65ec136
名前 / ファイル | ライセンス | アクション |
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multox (25.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-04-30 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Comparative Study of Direct and Graphite-Mediated Oxidation of Large PAHs | |||||
言語 | ||||||
言語 | eng | |||||
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(英) |
Weippert, Jürgen
× Weippert, Jürgen× Huber, Philipp× Hauns, Jakob× Narita, Akimitsu× Müllen, Klaus× Amsharov, Konstantin Y.× Böttcher, Artur× Kappes, Manfred M. |
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書誌情報 |
en : The Journal of Physical Chemistry C 巻 125, 号 15, p. 8163-8176, 発行日 2021-04-14 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We have used a surface-science-based, ion-beam-soft-landing approach to study the heterogeneous oxidation of a series of large polycyclic aromatic hydrocarbons (PAHs) deposited onto highly oriented pyrolytic graphite (HOPG). The reactivities of well-defined thin films of hexabenzocoronene (C42H18), pentacene (C22H14), fullerene precursor (C60H30), and rubrene (C42H28) with effusive beams of oxygen atoms were compared to the reaction outcome upon depositing a monolayer of the same PAHs onto a preoxidized graphite surface. In both cases, sublimable oxidized derivatives of PAHs were observed using mass-resolved temperature-programmed desorption (with compositions assigned using oxygen isotope labeling where necessary). For all PAHs investigated, the on-top oxidation of multilayers leads to epoxides. By contrast, the products of the oxidation of (sub)monolayers are seen to depend on the molecular structure of the PAH. While the flatly adsorbing planar PAHs react to form lactones and quinones, the highly nonplanar rubrene does not show analogous surface-mediated chemistry, instead forming epoxides exclusively. These observations when taken together with our previous study of coronene oxidation are of potential interest for sp2-nanocarbon-based oxidation catalysis. Furthermore, we have demonstrated a ultra high vacuum (UHV)-based route to sublimable oxides ranging in size up to C60H30O5, which may be useful for nanotechnological applications. | |||||
出版者 | ||||||
出版者 | American Chemical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1932-7447 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1932-7455 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1021/acs.jpcc.0c11271 | |||||
権利 | ||||||
権利情報 | © 2021 American Chemical Society. | |||||
権利 | ||||||
権利情報 | This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by t he publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.0c11271. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.0c11271 | |||||
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 |