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Preparation and characterization of SBA-15 supported Pd catalyst for CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
46948 46453 2011 9 PDF Available
Title
Preparation and characterization of SBA-15 supported Pd catalyst for CO oxidation
Abstract

SBA-15 supported noble metal catalysts for CO oxidation have been extensively investigated. However, no reported work on the SBA-15 supported palladium catalyst for CO oxidation can be found in the literature. In this work, highly dispersed palladium nanoparticles were synthesized within the uniform channels of SBA-15 via a glow discharge plasma reduction treatment. The obtained Pd/SBA-15 catalyst shows a good activity for CO oxidation. The activity can be further improved by the hydrogen reduction thermally. The low-angle X-ray diffraction (XRD) patterns and transmission electron microscope (TEM) indicate that the ordered mesoporous structure was well maintained during the catalyst preparation and reaction processes. The wide-angle XRD patterns and TEM images show that the spherical palladium nanoparticles are highly dispersed within the SBA-15 channels and remain stable after the reaction. The diffuse reflectance infrared Fourier transformation (DRIFT) spectroscopy of adsorbed CO confirms that the structure change caused by different preparation conditions has a significant influence on the activity of the catalyst.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights• Highly dispersed nanoparticles were synthesized within the uniform channels via a glow discharge plasma treatment. • The activity of the Pd/SBA-15 catalyst on CO oxidation was firstly evaluated. • The highly dispersed nanoparticles remain stable after the reaction. • The Pd/SBA-15 catalysts show a good activity on CO oxidation. • The catalyst preparation method has a significant influence on the catalyst activity.

Keywords
Mesoporous material; SBA-15; Palladium; CO oxidation; Plasma
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Preparation and characterization of SBA-15 supported Pd catalyst for CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 106, Issues 3–4, 11 August 2011, Pages 672–680
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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