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Tuning the morphology of monolith coatings

Paper ID Volume ID Publish Year Pages File Format Full-Text
43997 45998 2007 5 PDF Available
Title
Tuning the morphology of monolith coatings
Abstract

Well-defined α-Al2O3-coated monoliths with different channel geometries to be used in the preparation of structured catalysts or sorbents have been prepared by dipping cordierite monoliths in α-Al2O3/water suspensions.Tuning the morphology of α-Al2O3-coated monoliths can be carried out fixing different factors, like pH, α-Al2O3 concentration in the suspension and using dry or pre-wetted monoliths. Two coating geometries, the extremes for square channels, round and quasi-square ones, have been obtained. So, an optimal coating morphology can be chosen depending on the application. Finally, γ-Al2O3 has been used as example of final catalyst support coating with a uniform thickness over the whole channel perimeter.

Graphical abstractThe morphology of monolithic channels can be tuned by coating with α-Al2O3. Two coating geometries, the extremes for square channels, round and quasi-square ones, have been obtained. So, an optimal coating morphology can be chosen depending on the application. Finally, γ-Al2O3 has been used as example of final catalyst support coating with a uniform thickness over the whole channel perimeter.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Monolith; Alumina; Coating; Catalyst support; Geometry
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 319, 1 March 2007, Pages 267–271
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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