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Identification of active sites in CO oxidation over a Pd/Al2O3 catalyst
http://hdl.handle.net/2237/00031041
http://hdl.handle.net/2237/0003104131efb0b6-20fa-46d2-96f2-690a8a8e40dc
名前 / ファイル | ライセンス | アクション |
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manuscript (900.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-12-24 | |||||
タイトル | ||||||
タイトル | Identification of active sites in CO oxidation over a Pd/Al2O3 catalyst | |||||
言語 | en | |||||
著者 |
Murata, Kazumasa
× Murata, Kazumasa× Eleeda, Eleen× Ohyama, Junya× Yamamoto, Yuta× Arai, Shigeo× Satsuma, Atsushi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Pd catalyst | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CO oxidation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | particle size effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | metal-support interaction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | alumina | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | surface structure | |||||
抄録 | ||||||
内容記述 | The active sites of Pd/Al2O3 catalysts for CO oxidations were identified by investigating the dependence of CO oxidation activities on the surface structure and morphology of Pd nanoparticles. The maximum catalytic activity was obtained for Pd particles approximately 2 nm in particle size. We performed structural analyses on the Pd surface through infrared (IR) spectroscopy of the adsorbed CO molecules. A positive correlation was obtained between catalytic activity and the fraction of linear CO adsorbed on Pd corner sites and Pd(111) facets, indicating that these sites are highly active for CO oxidation. X-ray absorption fine structure (XAFS) and spherical aberration-corrected scanning transmission electron microscopy (Cs-STEM) measurements demonstrated that Pd nanoparticles less than 2 nm in particle size with amorphous-like structures and Pd particles with large, well-ordered structures favor the formation of a high fraction of corner sites and Pd(111) facets, respectively. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2020/09/07 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Royal Society of Chemistry | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1039/C9CP03943K | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1463-9076 | |||||
書誌情報 |
en : Physical Chemistry Chemical Physics 巻 21, 号 33, p. 18128-18137, 発行日 2019-09-07 |
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著者版フラグ | ||||||
値 | author |