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

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/66972

Title: Supported rhenium nanoparticle catalysts for acceptorless dehydrogenation of alcohols: structure-activity relationship and mechanistic studies
Authors: Kon, Kenichi Browse this author
Onodera, Wataru Browse this author
Toyao, Takashi Browse this author →KAKEN DB
Shimizu, Ken-ichi Browse this author →KAKEN DB
Issue Date: 7-Aug-2016
Publisher: Royal Society of Chemistry
Journal Title: Catalysis science and technology
Volume: 6
Issue: 15
Start Page: 5864
End Page: 5870
Publisher DOI: 10.1039/c6cy00252h
Abstract: 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.
Type: article (author version)
URI: http://hdl.handle.net/2115/66972
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 清水 研一

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