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Selective catalytic reduction of NO over carbon nanotubes supported CeO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
51706 46851 2011 5 PDF Available
Title
Selective catalytic reduction of NO over carbon nanotubes supported CeO2
Abstract

A new cerium oxide catalyst supported on HNO3-treated carbon nanotubes (TCNTs) was prepared for the first time and used for the selective catalytic reduction of NO with ammonia. CeO2 located on the outer surface or in the tubular channel of CNTs could be observed. Among these tested samples, carbon nanotubes loading Ce with a Ce/C mole ratio of 0.003 (calcined at 350 °C) obtained the best NO conversion in the medium temperature range of 250–400 °C. The activity improvement of 0.3 Ce/TCNTs (350) was attributed to the enlarged surface area by HNO3 treatment, the suitable crystal size of CeO2 and the well dispersion of ceria on the surface of CNTs.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Carbon nanotubes (CNTs) doped with CeOx were used for the SCR of NO. ► Ce/C molar ratio 0.003 and calcination temperature 350 °C led to best NO conversion. ► The above catalyst showed the highest surface area and the best redox activity.

Keywords
Medium temperature SCR; Carbon nanotube; Cerium oxide; NO conversion
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Selective catalytic reduction of NO over carbon nanotubes supported CeO2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 14, Issue 1, 25 October 2011, Pages 1–5
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