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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

High Pt-mass activity of Pt^IV1/β-MnO2 surface for low-temperature oxidation of CO under O2-rich conditions

http://hdl.handle.net/2237/0002003771
http://hdl.handle.net/2237/0002003771
fdb77304-6de4-4e2f-92ba-da3b953363d5
名前 / ファイル ライセンス アクション
20220419_revised_Manuscipt.pdf 20220419_revised_Manuscipt.pdf (808 KB)
Item type itemtype_ver1(1)
公開日 2022-09-13
タイトル
タイトル High Pt-mass activity of Pt^IV1/β-MnO2 surface for low-temperature oxidation of CO under O2-rich conditions
言語 en
著者 Nagata, Takeshi

× Nagata, Takeshi

en Nagata, Takeshi

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Oda, Akira

× Oda, Akira

en Oda, Akira

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Yamamoto, Yuta

× Yamamoto, Yuta

en Yamamoto, Yuta

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Ichihashi, Risa

× Ichihashi, Risa

en Ichihashi, Risa

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Sawabe, Kyoichi

× Sawabe, Kyoichi

en Sawabe, Kyoichi

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Satsuma, Atsushi

× Satsuma, Atsushi

en 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
内容記述
内容記述 A Pt-based CO oxidation catalyst that works even at low temperatures is desirable for industrial applications; however, its development is highly challenging because of Pt's high affinity toward CO. Here, we develop a Pt^IV single-atom/β-MnO2 composite metal-oxide surface (Pt1^IV/β-MnO2). Single Pt^IV sites were stably formed on the high surface β-MnO2 by strong interaction with Mn^IV defect sites. The resulting Pt^IV–O–Mn^IV local structures served the lattice oxygens as an oxidant to catalyze low-temperature oxidation of CO. Pt1^IV/β-MnO2 was highly resistant to CO poisoning because of the high-valence state of the Pt^IV single-atom sites. Aided by these geometric and electronic features, the CO oxidation was catalyzed with reaction rates of 0.676 and 0.206 molCO/h/gPt at 25 °C and 0 °C, respectively, under the O2-rich conditions (O2 : CO ratio of 66.7). These are record rates in the literature for Pt-based catalyst application for low-temperature CO oxidation under near atmospheric conditions.
言語 en
内容記述タイプ Abstract
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
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1039/D2CY00677D
収録物識別子
収録物識別子タイプ PISSN
収録物識別子 2044-4753
書誌情報 en : Catalysis Science & Technology

巻 12, 号 9, p. 2749-2754, 発行日 2022-05-07
ファイル公開日
日付 2023-05-07
日付タイプ Available
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