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Influence of ceria promoter on shell-powder-supported Pd catalyst for the complete oxidation of benzene

Paper ID Volume ID Publish Year Pages File Format Full-Text
40552 45858 2013 6 PDF Available
Title
Influence of ceria promoter on shell-powder-supported Pd catalyst for the complete oxidation of benzene
Abstract

Pearl shells are the main waste of the pearl industry, which discards millions of tons of pearl shells each year in China. To date, the use of pearl shells in the complete oxidation of volatile organic compounds (VOCs) has not been reported. In this paper, shell powder (SP) was used as a carrier for ceria and Pd catalysts for the complete oxidation of benzene. The influence of the ceria promoter on the texture/structure and catalytic performance of Pd/SP was investigated. The results show that adding ceria into the SP support increased the BET surface area and total pore volume and decreased the sinterability of SP. The catalytic activity and H2 temperature-programmed reduction (H2-TPR) results show that adding ceria can greatly improve the oxidation properties of Pd/SP catalysts and enhance the catalytic activity for the complete oxidation of benzene. The improvement in the catalytic activity is mainly due to the optimization of the catalyst texture/structure and redox properties by the strong interaction of Pd and ceria and the addition of ceria.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (139 K)Download as PowerPoint slideHighlights► Doping with ceria on SP (500) results in an increase in SBET and pore volume. ► Ceria can greatly improve the oxidation properties of Pd/SP (500). ► Pd/6%Ce/SP (500) exhibits the highest catalytic activity for benzene oxidation.

Keywords
Shell powder; Ceria; Pd; Benzene oxidation
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Influence of ceria promoter on shell-powder-supported Pd catalyst for the complete oxidation of benzene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 451, 31 January 2013, Pages 65–70
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
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