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Pd supported on SnO2–MnOx–CeO2 catalysts for low temperature CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
53623 46977 2015 6 PDF Available
Title
Pd supported on SnO2–MnOx–CeO2 catalysts for low temperature CO oxidation
Abstract

•Pd supported on SnO2–MnOx–CeO2 catalysts show excellent CO oxidation activity at low temperatures.•Highly oxidized Pd4+ species form on the surface of SnO2–MnOx–CeO2 solid solution support.•Addition of Pd increases the amount of surface lattice oxygen, and promotes the reducibility and activity of surface lattice oxygen.

Pd deposited on CeO2, MnOx–CeO2 and SnO2–MnOx–CeO2 solid solution were tested for low temperature CO oxidation activity. Among them, Pd–MnOx–CeO2 (Pd–MC) and Pd–SnO2–MnOx–CeO2 (Pd–SMC) showed excellent low temperature activity and over 90% of CO conversion was obtained at room temperature. SO2 poisoning tests with 200 ppm at room temperature showed that Pd–SMC could keep high CO conversion as compared to Pd–MC. The high CO oxidation activity of Pd–SMC at low temperatures could be attributed to strong oxidation ability of highly oxidized Pd species and interactions between Pd and solid solution support.

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Keywords
Pd; SnO2–MnOx–CeO2; Low temperature; Surface lattice oxygen; SO2; Hydrothermal treatment
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Pd supported on SnO2–MnOx–CeO2 catalysts for low temperature CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 258, Part 2, 1 December 2015, Pages 481–486
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