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Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure-activity relationship and mechanistic studies

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タイトル: Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure-activity relationship and mechanistic studies
著者: Kon, Kenichi 著作を一覧する
Onodera, Wataru 著作を一覧する
Toyao, Takashi 著作を一覧する
Shimizu, Ken-ichi 著作を一覧する
発行日: 2016年 8月 7日
出版者: Royal Society of Chemistry
誌名: Catalysis science and technology
巻: 6
号: 15
開始ページ: 5864
終了ページ: 5870
出版社 DOI: 10.1039/c6cy00252h
抄録: Al2O3-supported Re with different oxidation states and Re-0 metal nanoparticles on various supports are prepared, characterized and tested for the dehydrogenation of 2-octanol. The activity of Re/Al2O3 increases with the fraction of metallic Re. The activity of metallic Re depends on the support oxides, and the support with moderate electronegativity (Al2O3) gives the highest turnover frequency (TOF) per surface Re-0 site. Re/Al2O3 is effective for acceptorless dehydrogenation of various aliphatic secondary alcohols to ketones. The kinetic isotope effects on the dehydrogenation of 2-propanol show that dissociation of the alpha-C-H bond of 2-propanol is the rate-limiting step. The IR study of the reaction of gas phase 2-propanol over the Re/Al2O3 surface shows that the acid-base pair site of Al2O3 is responsible for the O-H dissociation of 2-propanol. The structural requirements are discussed on the basis of the mechanistic results.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/66972
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 清水 研一

 

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