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Catalytic decomposition of N2O over CuxCe1−xOy mixed oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
46103 46429 2012 7 PDF Available
Title
Catalytic decomposition of N2O over CuxCe1−xOy mixed oxides
Abstract

The catalytic N2O decomposition was investigated over a series of CuxCe1−xOy mixed oxides with different Cu/Ce molar ratios. Effects of synergy over mixed oxides of CeO2 and CuO were observed significantly, the catalyst of Cu0.67Ce0.33Oy exhibited the high activity among the Cu–Ce–O mixed oxides for N2O decomposition. Characterizations of XRD, N2-adsorption, XPS, and H2-TPR were applied to correlate their properties with the corresponding catalytic performance, and reveal the synergetic effect between CuO and CeO2 for N2O decomposition. In situ DRIFTS investigation confirmed the presence of CuI species that was closely related with the activity of CuxCe1−xOy catalyst. The synergy of CuxCe1−xOy promoted the stability and the ability to regenerate the active CuI site.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The synergetic effect is demonstrated between Cu and Ce in the CuxCe1−xOy mixed oxides. ► The synergetic effect leads to an enhancement in the catalytic activity and stability. ► The amount of the CuI species correlates well with the N2O decomposition performance. ► The synergy promotes the stability and the ability of regeneration of active site CuI.

Keywords
Synergetic effect; N2O decomposition; CuxCe1−xOy catalyst; In situ DRIFTS
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Catalytic decomposition of N2O over CuxCe1−xOy mixed oxides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 125, 21 August 2012, Pages 492–498
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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