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Palladium catalyst supported on stair-like microstructural CeO2 provides enhanced activity and stability for low-concentration methane oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
38742 45789 2016 6 PDF Available
Title
Palladium catalyst supported on stair-like microstructural CeO2 provides enhanced activity and stability for low-concentration methane oxidation
Abstract

•Octahedral CeO2 (OCO) was self-assembled from nanosize rectangular block.•As-synthesized CeO2 possesses stair-like microstructure.•The Pd/OCO catalyst exhibit excellent activity and stability.•Unique microstructure endows CeO2 potential application in catalysis.

Octahedral CeO2 microparticles possessing a stair-like microstructure comprising self-assembled nano-sized rectangular blocks were synthesized by a hydrothermal synthetic route. The samples were characterized by X-ray diffraction, scanning/transmission electron microscopy, and nitrogen adsorption/desorption techniques. The structural functions of the as-synthesized CeO2 as support for the Pd catalyst were investigated by the catalytic oxidation of low-concentration methane. The results showed that the unique stair-like structure of CeO2 improved the stability of the Pd catalyst for continuous conversion of low-concentration methane, which suggests that the as-synthesized CeO2 has potential application in the removal of low-concentration methane from ventilation air and other oxidations.

Graphical abstractAs-synthesized CeO2 octahedral possesses a stair-like microstructure and it is a novel support material for Pd catalyst, which exhibits enhanced properties in low-concentration methane oxidation.Figure optionsDownload full-size imageDownload high-quality image (153 K)Download as PowerPoint slide

Keywords
Stair-like structural CeO2; Self-assembly; Methane oxidation; Catalytic properties
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Palladium catalyst supported on stair-like microstructural CeO2 provides enhanced activity and stability for low-concentration methane oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 524, 25 August 2016, Pages 237–242
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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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
Any Questions? feel free to contact us