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Nucleation and growth of manganese oxides on metallic surfaces as a tool to prepare metallic monoliths

Paper ID Volume ID Publish Year Pages File Format Full-Text
43649 45981 2007 8 PDF Available
Title
Nucleation and growth of manganese oxides on metallic surfaces as a tool to prepare metallic monoliths
Abstract

The use of austenitic stainless steel (AISI 304) as metallic substrate for catalytic devices is explored in this work as well as an alternative procedure to the washcoating of the active phase. Catalyst deposition on austenitic stainless steel takes advantage of the manganese concentration of this alloy by direct growing of the new catalytic phase on the monolith surface during the synthesis. Manganese oxide (OMS) is chosen as active phase and VOC abatement by total oxidation as catalytic test. It is possible to coat metallic monoliths by growing the catalytic phase, manganese oxide (OMS), in situ during the reflux synthesis of cryptomelane. This preparation strategy needs a proper metal surface modification but is possible to deposit a large amount of catalyst in a very adherent form. The metallic coating shows similar adherences to those found using Fecralloy substrates even thought, in the case of the monolith prepared by repeated washcoating on AISI 304, new phases seem to be produced showing quite higher activity in total oxidation of ethyl acetate.

Keywords
Metallic monoliths; Ethyl acetate oxidation; VOC abatement; Crytomelane; OMS
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Nucleation and growth of manganese oxides on metallic surfaces as a tool to prepare metallic monoliths
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 325, Issue 2, 15 June 2007, Pages 205–212
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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