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One-Step Growth of Core–Shell (PtPd)@Pt and (PtPd)@Pd Nanoparticles in the Gas Phase
https://oist.repo.nii.ac.jp/records/1646
https://oist.repo.nii.ac.jp/records/1646e4bd77fc-72fc-41c1-bb63-649de03583e5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
acs.jpcc.0c02621-min (671.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-07-28 | |||||
| タイトル | ||||||
| タイトル | One-Step Growth of Core–Shell (PtPd)@Pt and (PtPd)@Pd Nanoparticles in the Gas Phase | |||||
| 言語 | en | |||||
| 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） |
Nelli, Diana
× Nelli, Diana× Krishnadas, Anjana× Ferrando, Riccardo× Minnai, Chloé |
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| 書誌情報 |
en : The Journal of Physical Chemistry C 巻 124, 号 26, p. 14338-14349, 発行日 2020-06-10 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Pt–Pd nanoparticles are grown in the gas phase by a magnetron-sputtering source and characterized by electron microscopy techniques for both Pt-rich and Pd-rich compositions of the metallic vapor. It is shown that this growth procedure can produce different types of core–shell nanoparticles, in one step, with sizes in the range of 4–10 nm, according to the composition of the vapor being rich either in Pt or in Pd. In all cases, the nanoparticles present intermixed cores containing both Pt and Pd and shells made of the majority element, i.e., of (PtPd)@Pt structure for the Pt-rich vapor and (PtPd)@Pd structure for the Pd-rich vapor. Global searches of the optimal chemical ordering show that none of these structures correspond to equilibrium configurations. On the contrary, these core–shell structures are strongly out-of-equilibrium, being the result of kinetic trapping phenomena. This is verified by molecular dynamics growth simulations which are able to reproduce both the different types of chemical ordering and the variety of geometric shapes found in the experiments. | |||||
| 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.0c02621 | |||||
| 権利 | ||||||
| 権利情報 | © 2020 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 the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.jpcc.0c02621. | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://pubs.acs.org/doi/10.1021/acs.jpcc.0c02621 | |||||
| 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 | |||||
