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Dehydrogenation of cyclohexanol on copper containing catalysts: The role of the support and the preparation method

Paper ID Volume ID Publish Year Pages File Format Full-Text
50989 46824 2012 4 PDF Available
Title
Dehydrogenation of cyclohexanol on copper containing catalysts: The role of the support and the preparation method
Abstract

SiO2 and Al2O3 supported copper catalysts were prepared by “chemisorption–hydrolysis” or incipient wetness impregnation methods and investigated by XRD, TG-TPR, UV–vis diffuse reflectance and FTIR spectroscopy. Formation of finely dispersed copper oxide species was registered for the samples prepared by “chemisorption–hydrolysis” method, while a significant amount of XRD detectable copper oxide phase is registered for the SiO2 impregnated one. The latter materials possess higher catalytic selectivity in cyclohexanol dehydrogenation to cyclohexanone.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► CuO/SiO2 and CuO/Al2O3 are prepared by chemisorption-hydrolysis and impregnation. ► They are highly active catalysts for cyclohexanol dehydrogenation. ► Their catalytic behavior depends on the support and the preparation procedure. ► CuO/SiO2, prepared by impregnation shows the highest selectivity to cyclohexanone.

Keywords
Cyclohexanol dehydrogenation; Copper catalysts; “Chemisorption–hydrolysis”; Impregnation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 17, 5 January 2012, Pages 150–153
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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