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Titania supported Co–Mn–Al oxide catalysts in total oxidation of ethanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
55626 47059 2012 6 PDF Available
Title
Titania supported Co–Mn–Al oxide catalysts in total oxidation of ethanol
Abstract

Catalytic activity of the Co–Mn–Al mixed oxide catalysts (Co:Mn:Al molar ratio of 4:1:1) supported over titania was examined in total oxidation of ethanol. The prepared catalysts were characterized by chemical analysis (AAS), surface area measurements, and temperature programmed techniques (TPR, TPD). In ethanol oxidation, the catalysts activity gradually increased with increasing active phase content. Low concentration of Co–Mn–Al oxides in the catalyst negatively affected formation of reaction byproducts: carbon monoxide production steeply increased when Co + Mn metals concentration were lower than 5 wt.%. On the other hand, formation of the second main reaction intermediate, acetaldehyde was limited, when acidity of the catalyst was not high, i.e. concentration of Co–Mn metals over titania was low.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (90 K)Download as PowerPoint slideHighlights► Co–Mn–Al oxides over grained and pelletized titania were studied in ethanol oxidation. ► Reducibility and acidity of the catalysts influence selectivity in ethanol oxidation. ► Active components deposited in support outer shell leads to higher catalytic activity.

Keywords
Mixed oxide catalysts; VOC oxidation; Titania
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Titania supported Co–Mn–Al oxide catalysts in total oxidation of ethanol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 179, Issue 1, 5 January 2012, Pages 164–169
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
Online Support
Any Questions? feel free to contact us