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Determination of Metal Dispersion of Pt/CeO2 Catalyst by CO-pulse Method
http://hdl.handle.net/2237/14010
http://hdl.handle.net/2237/140107a02cb06-0237-4bb2-8226-11eebcb41c21
名前 / ファイル | ライセンス | アクション |
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32_Journal_of_the_japan_petroleum_institute_48_173-177.pdf (182.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-08-17 | |||||
タイトル | ||||||
タイトル | Determination of Metal Dispersion of Pt/CeO2 Catalyst by CO-pulse Method | |||||
言語 | en | |||||
その他のタイトル | ||||||
その他のタイトル | COパルス法によるPt/CeO2触媒の金属分散度の測定 | |||||
言語 | ja | |||||
著者 |
駒井, 慎一
× 駒井, 慎一× Komai, Shin'ichi× 矢澤, 義輝× Yazawa, Yoshiteru× 薩摩, 篤× Satsuma, Atsushi× 服部, 忠× Hattori, Tadashi |
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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 | |||||
権利 | ||||||
言語 | ja | |||||
権利情報 | 社団法人日本石油学会 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Metal dispersion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Platinum catalyst | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ceria support | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Carbon monoxide adsorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Reduction condition | |||||
抄録 | ||||||
内容記述 | In order to establish a CO adsorption method for rapid measurement of metal dispersion of catalysts containing CeO2 that disturbs the measurement due to the adsorption of H2 or CO, the effect of reduction conditions on CO adsorption over Pt/CeO2 catalyst was examined on the basis of the standardized manual of CO-pulse method established by the Committee on Reference Catalyst, the Catalysis Society of Japan. Reduction of the catalysts under the standardized condition (673 K, 15 min) showed that Pt catalysts supported on low surface area CeO2 (12.6 m2・g-1) gave reasonable ratios of adsorbed CO to total Pt. However, the CO/Pt ratio exceeded unity on high surface area CeO2 support (66.7 m2・g-1), suggesting adsorption of CO on the CeO2 surface. Reduction of the catalyst under milder conditions at 373 to 573 K for 15 min to 5 h gave constant CO/Pt ratio of 0.40 within a reasonable experimental error. The mean particle diameter estimated from this CO/Pt ratio on the assumption of spherical particles closely agreed with a volume-area mean diameter measured by TEM. It was concluded that the dispersion of Pt supported on CeO2 can be measured by lowering the reduction temperature to suppress the effect of the CeO2 support. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
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 | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1346-8804 | |||||
書誌情報 |
en : Journal of the Japan Petroleum Institute 巻 48, 号 3, p. 173-177, 発行日 2005 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/14010 | |||||
識別子タイプ | HDL |