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Catalytic performance of Ag–Co/CeO2 catalyst in NO–CO and NO–CO–O2 system

Paper ID Volume ID Publish Year Pages File Format Full-Text
52896 46890 2007 7 PDF Available
Title
Catalytic performance of Ag–Co/CeO2 catalyst in NO–CO and NO–CO–O2 system
Abstract

A new bimetallic catalyst (Ag–Co/CeO2) was studied for simultaneously catalytic removal of NO and CO in the absence or presence of O2. CeO2 prepared by homogeneous precipitation method was optimized as supports for the active components. The addition of Ag on CeO2 greatly improved the catalytic activities in the lower temperature regions (⩽300 °C), and the introduction of Co on CeO2 increased the activities at higher temperatures (⩾250 °C). The bimetallic Ag–Co/CeO2 catalyst combined the advantages of the corresponding individual metal supported catalysts and showed superior activity due to the synergetic effect. The effect of support, temperature, loading amount, GHSV and oxygen on catalysis was investigated. NO and CO could be completely removed in the temperature range of 200–600 °C at a very high space velocity of 120 000 h−1. No deactivation was observed over 4% Ag–0.4% Co/CeO2 catalyst even after 50 h test.

Keywords
Ag–Co/CeO2 catalyst; NO; CO; Catalytic removal
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 612–618
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