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Benzene oxidation with ozone over MnOx/SBA-15 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
54897 47030 2013 6 PDF Available
Title
Benzene oxidation with ozone over MnOx/SBA-15 catalysts
Abstract

Catalytic oxidation of benzene with ozone has been studied using manganese oxides with two different manganese precursors, Mn(NO3)2 and Mn(CH3COO)2, supported on SBA-15 (MnOx/SBA-15). The catalysts were characterized by X-ray diffraction, N2 adsorption–desorption, Raman spectroscopy, and H2-temperature programmed reduction. The manganese nitrate (MN) precursor primarily resulted in large particles on the silica support, while the manganese acetate (MA) precursor mainly resulted in a highly dispersed manganese oxide on the silica support. The catalytic activity was dependent upon ozone concentration, reaction times, and the amount of Mn loading. Higher benzene conversion, O3 conversion, and COx yield were observed for MnOx-MA/SBA-15 catalyst over MnOx-MN/SBA-15, due to the highly dispersed manganese oxides on the supports, and the higher oxygen mobility. The 15 wt% MnOx-MA/SBA-15 catalyst shows the highest catalytic activity of all the catalysts considered in this study.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (118 K)Download as PowerPoint slideHighlight► MnOx/SBA-15 was applied to benzene oxidation with ozone for the first time. ► Mn acetate showed higher catalytic activity than Mn nitrate. ► Mn acetate resulted in highly dispersed Mn oxide.

Keywords
MnOx/SBA-15; Catalytic oxidation; Benzene; Ozone; Mn acetate; Mn nitrate
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Benzene oxidation with ozone over MnOx/SBA-15 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 204, 15 April 2013, Pages 108–113
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