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Three-dimensional ordered mesoporous cobalt oxides: Highly active catalysts for the oxidation of toluene and methanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
50616 46805 2010 5 PDF Available
Title
Three-dimensional ordered mesoporous cobalt oxides: Highly active catalysts for the oxidation of toluene and methanol
Abstract

Three-dimensional (3D) ordered mesoporous cubic Co3O4 (denoted as Co-KIT6 and Co-SBA16) were fabricated adopting the KIT-6- and SBA-16-templating strategies, respectively. It is shown that Co-KIT6 and Co-SBA16 possessed large surface areas (118–121 m2/g), high oxygen adspecies concentrations, and good low-temperature reducibility. Over Co-KIT6 at space velocity = 20,000 mL/(g h), 90% toluene and methanol conversions were achieved at 180 and 139 °C, respectively. The excellent catalytic performance of Co-KIT6 and Co-SBA16 was associated with their larger surface areas, higher oxygen adspecies concentrations, better low-temperature reducibility, and 3D ordered mesoporous structure.

Graphical abstractHigh-surface-area 3D ordered mesoporous Co3O4 (denoted as Co-KIT6 and Co-SBA16) can be fabricated with the KIT-6 and SBA-16-templating strategies, respectively. The Co-KIT6 and Co-SBA16 catalysts possess large surface areas, high oxygen adspecies concentrations, good low-temperature reducibility, and 3D ordered mesoporous structures, which are responsible for their excellent performance for toluene and methanol oxidation.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Vacuum treatment favors the formation of 3D ordered mesoporous structure. ► 3D ordered mesoporous structure possesses high surface area. ► 3D ordered mesoporous structure exhibits good low-temperature reducibility. ► Mesoporous structure, reducibility, and oxygen species determine catalytic activity.

Keywords
Three-dimensional mesoporous cobalt oxide catalyst; Hard-templating fabrication; Volatile organic compound oxidation; Low-temperature reducibility
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Three-dimensional ordered mesoporous cobalt oxides: Highly active catalysts for the oxidation of toluene and methanol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 15, 25 September 2010, Pages 1171–1175
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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Any Questions? feel free to contact us