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Effect of La2O3 modification on the catalytic performance of Ni/SiC for methanation of carbon dioxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
51561 46847 2011 4 PDF Available
Title
Effect of La2O3 modification on the catalytic performance of Ni/SiC for methanation of carbon dioxide
Abstract

Ni/SiC and La2O3 modified Ni/SiC were prepared by impregnation method and used as the catalysts for methanation of CO2. The modified Ni/SiC shows better catalytic activity and stability than pure Ni/SiC. XRD and TPR results indicate that La2O3 can effectively restrain the growth of NiO nanoparticles, improve the dispersion of NiO and strengthen the interaction between NiO and SiC. XPS result suggests that La2O3 can change the electron environment surrounding Ni atoms and thus reactant CO2 on the Ni atoms can be activated more easily.

Graphical abstractLa2O3 modification can enhance the metal–support interaction and thus stabilize nickel nanoparticles on the support. Therefore Ni–La/SiC catalyst exhibits high activity and excellent durability for CO2 methanation.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Ni/SiC and La2O3 modified Ni/SiC catalysts were prepared by impregnation method. ► La2O3 modified Ni/SiC exhibits higher activity and durability in CO2 methanation. ► The improved catalytic behavior results from the high dispersion of nickel species.

Keywords
Ni/SiC catalyst; La2O3 modification; CO2 methanation; Stability
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Effect of La2O3 modification on the catalytic performance of Ni/SiC for methanation of carbon dioxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 16, Issue 1, 30 November 2011, Pages 56–59
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
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Full-text PDF Download
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