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Total catalytic oxidation of toluene using Pd impregnated on hierarchically porous Nb2O5 and Ta2O5 supports

Paper ID Volume ID Publish Year Pages File Format Full-Text
55173 47042 2012 6 PDF Available
Title
Total catalytic oxidation of toluene using Pd impregnated on hierarchically porous Nb2O5 and Ta2O5 supports
Abstract

A series of supported Pd catalysts were elaborated using hierarchically porous Nb2O5 and Ta2O5 materials, synthesised with and without a non-ionic surfactant. The deposition of Pd nanoparticles was achieved using the wet impregnation method on calcined supports. The catalytic systems were pre-reduced in hydrogen and investigated for their efficiency in the total oxidation of toluene and found to have increased activity in comparison to a series of reference catalysts based on hierarchically porous TiO2 and ZrO2, with minimal benzene formation. Results have shown how activities are dependent on the support material, synthesis conditions and chemical composition.

Graphical abstractPd impregnated hierarchically porous Nb2O5 and Ta2O5 materials have been used in the catalytic oxidation of toluene. Results have shown an evident improvement in the T50% in comparison to hierarchical titania and zirconia materials synthesised in a similar fashion.Figure optionsDownload full-size imageDownload high-quality image (191 K)Download as PowerPoint slideHighlights► Synthesis of hierarchically porous niobium and tantalum oxides. ► Spontaneous self-formation of oxides from alkoxides. ► Pd nanoparticles supported on hierarchically porous Nb2O5 and Ta2O5 supports. ► Metal oxide-catalyst effect influenced by morphology and chemical composition of support. ► Reduction in T50% in the total oxidation of toluene, cf. similar TiO2–ZrO2 supports.

Keywords
VOC mitigation; Hierarchically porous materials; Niobium and tantalum oxide; Catalysis
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Total catalytic oxidation of toluene using Pd impregnated on hierarchically porous Nb2O5 and Ta2O5 supports
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 192, Issue 1, 30 September 2012, Pages 183–188
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