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Enhanced catalytic activity for selective catalytic reduction of NO over titanium nanotube-confined CeO2 catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
50395 46793 2011 4 PDF Available
Title
Enhanced catalytic activity for selective catalytic reduction of NO over titanium nanotube-confined CeO2 catalyst
Abstract

Titanium nanotubes (TNTs)-confined ceria were for the first time prepared in this paper and used for selective catalytic reduction (SCR) of NO with ammonia. In comparison with the catalysts supported by TiO2 nanoparticles, the confined ceria showed a superiority in SCR of NO due to the improved redox potential and special adsorption of NH3, where its NO conversion could exceed 95% at reaction temperature of 270–500 °C, which was much higher than that of TiO2 nanoparticle supported catalysts.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Titanium nanotubes filled with CeO2 were prepared and used for the SCR of NO. ► Its NO conversion exceeded 95% during the reaction temperature of 270–500 ºC. ► H2-TPR results of Ce/TNTs indicated the significantly improved redox potential. ► NH3-TPD profiles of Ce doped TNTs revealed the special adsorption of NH3.

Keywords
Titanium nanotube; Confinement effect; SCR; CeO2 catalyst
First Page Preview
Enhanced catalytic activity for selective catalytic reduction of NO over titanium nanotube-confined CeO2 catalyst
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 11, 10 June 2011, Pages 1042–1045
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis