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Potassium-promoted Mo/MWCNTs catalysts for effective partial oxidation of 1-dodecanol to 1-dodecanal

Paper ID Volume ID Publish Year Pages File Format Full-Text
39354 45819 2015 7 PDF Available
Title
Potassium-promoted Mo/MWCNTs catalysts for effective partial oxidation of 1-dodecanol to 1-dodecanal
Abstract

•Selective oxidation of 1-dodecanol with air over Mo/MWCNTs and K/Mo/MWCNTs.•Preparation and characterization of Mo/MWCNTs and K/Mo/MWCNTs catalysts.•Effects of reaction parameters for catalytic oxidation of 1-dodecanol.•Apparent activation energies for formation of 1-dodecanal and dodecene isomers.•Superior catalytic performance with 2K/Mo/MWCNTs catalyst.

Multiwall carbon nanotubes supported MoO3 (Mo/MWCNTs) and potassium containing Mo/MWCNTs (K/Mo/MWCNTs) catalysts were prepared and characterized with XRD, N2-physisorption, SEM, TEM, NH3-TPD, and TGA/DTA. Increasing the Mo content (5–15 wt%) in Mo/MWCNTs samples diminished BET surface area and pore volume with concomitant increase of MoO3 particle size. Potassium addition to Mo/MWCNTs resulted in apparent decrease of their acid amounts and MoO3 particle sizes. These catalysts were utilized for selective oxidation of 1-dodecanol (DCOL) with air to obtain 1-dodecanal (DCAL). Various reaction parameters were investigated. It was found that K/Mo/MWCNTs exhibited much better catalyst performance than Mo/MWCNTs. Potassium loading on Mo/MWCNTs greatly enhanced DCOL conversion, DCAL selectivity, and catalyst stability due to smaller MoO3 particles and decreased acid sites.

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Keywords
1-dodecanol; 1-dodecanal; Oxidation; Mo/MWCNTs; K/Mo/MWCNTs
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Potassium-promoted Mo/MWCNTs catalysts for effective partial oxidation of 1-dodecanol to 1-dodecanal
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 496, 25 April 2015, Pages 79–85
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