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Structure and catalytic activity of hosted in mesoporous silicas copper species: Effect of preparation procedure and support pore topology

Paper ID Volume ID Publish Year Pages File Format Full-Text
41217 45881 2011 9 PDF Available
Title
Structure and catalytic activity of hosted in mesoporous silicas copper species: Effect of preparation procedure and support pore topology
Abstract

Copper modifications of ordered mesoporous materials with different pore topology (SBA-15 and KIT-6) were prepared by incipient wetness impregnation and “chemisorption–hydrolysis” methods and further oxidative or consecutive oxidative/reductive treatment. The samples were characterized by nitrogen physisorption, XRD, XPS, FTIR, UV–vis and TPR–TG techniques. The ordered structures and the “chemisorption–hydrolysis” post synthetic method provide the formation of homogeneously dispersed in the mesopores copper species. The “chemisorption–hydrolysis” modification of the silicas with more opened 3D ordered structure (KIT-6) provides the formation of highly active catalysts, but their activity could be easily suppressed after the treatment under the reduction medium.

Graphical abstract.Figure optionsDownload full-size imageDownload high-quality image (129 K)Download as PowerPoint slideHighlights► Copper modified ordered mesoporous silicas with different pore topology. ► “Incipient wetness impregnation” vs “chemisorption–hydrolysis” methods of modification. ► Active catalysts obtained by “chemisorption–hydrolysis” deposition of copper on KIT-6.

Keywords
SBA-15; KIT-6; Copper modifications; Pore topology effect; Post-synthesis modification; Methanol decomposition
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Structure and catalytic activity of hosted in mesoporous silicas copper species: Effect of preparation procedure and support pore topology
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 406, Issues 1–2, 18 October 2011, Pages 13–21
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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