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Comparison between unsupported mesoporous Co3O4 and supported Co3O4 on mesoporous silica as catalysts for N2O decomposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
50118 46780 2016 5 PDF Available
Title
Comparison between unsupported mesoporous Co3O4 and supported Co3O4 on mesoporous silica as catalysts for N2O decomposition
Abstract

•Mesoporous Co3O4, by a soft-template method, lost mesopores at a high temperature.•Co3O4 supported on mesoporous silica showed activity for N2O decomposition.•Co3O4 on mesoporous silica is better than mesoporous Co3O4 for N2O decomposition.•The calcination temperature of Co3O4 on mesoporous silica should be less 550 °C.

Mesoporous Co3O4 (meso-Co3O4) and Co3O4 nanoparticles supported on mesoporous silica SBA-15 (Co/SBA-15) were prepared by hydrothermal synthesis and an impregnation method, respectively. Although the as-prepared meso-Co3O4 had mesopores and a higher surface area comparable to that of Co/SBA-15, its catalytic activity for N2O decomposition was much lower than that of Co3O4/SBA-15. The low catalytic activity of meso-Co3O4 mainly stems from the drastic decrease of the meso-Co3O4 surface area under the reaction condition used. On the other hand, Co/SBA-15 maintained its high surface area and mesopores with the aid of a robust silica support. This finding indicates that Co3O4 supported by a support is much more stable and efficient than meso-Co3O4 under N2O decomposition reaction conditions.

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Keywords
Mesoporous Co3O4; Co3O4 nanoparticles; N2O decomposition; Metal oxide supported catalyst; Mesopore
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Comparison between unsupported mesoporous Co3O4 and supported Co3O4 on mesoporous silica as catalysts for N2O decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 82, 5 July 2016, Pages 50–54
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
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us