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Ni–Al2O3 catalysts prepared by solution combustion method for syngas methanation

Paper ID Volume ID Publish Year Pages File Format Full-Text
50967 46824 2012 5 PDF Available
Title
Ni–Al2O3 catalysts prepared by solution combustion method for syngas methanation
Abstract

Ni–Al2O3 catalysts with varied Ni contents from 10 to 50 wt.% were prepared by solution combustion method for syngas methanation, and characterized by N2 adsorption–desorption, XRD, H2-TPR, SEM and TEM. The results show that the catalytic activity for syngas methanation over the Ni-Al2O3 catalysts is sensitive to Ni particle size and a maximum production rate of methane per unit mass of nickel can be achieved on Ni crystals around 41.8 nm. Moreover, Ni–Al2O3 catalysts with Ni loading above 20 wt.% show good high temperature stability, which is due to Ni particles scattered and spatially isolated by Al2O3.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Ni-Al2O3 catalysts are synthesized by solution combustion method. ► Syngas methanation over Ni-Al2O3 catalysts is a structure sensitivity reaction. ► The highest CO conversion is achieved on around 41.8 nm Ni particle size. ► Ni nanoparticles are scattered and spatially isolated by Al2O3.

Keywords
Solution combustion method; Ni–Al2O3; Syngas methanation; Structure sensitivity
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Ni–Al2O3 catalysts prepared by solution combustion method for syngas methanation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 17, 5 January 2012, Pages 34–38
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