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Design of highly efficient Zn-, Cu-, Ni- and Co-promoted M-AlPO4 solid acids: The acetalization of glycerol with acetone

Paper ID Volume ID Publish Year Pages File Format Full-Text
39348 45819 2015 8 PDF Available
Title
Design of highly efficient Zn-, Cu-, Ni- and Co-promoted M-AlPO4 solid acids: The acetalization of glycerol with acetone
Abstract

•We introduce Zn-, Cu-, Ni- or Co- into M-AlPO4, respectively.•The M-AlPO4/xAlPO4 (x = Zn, Cu, Ni, Co) exhibits good thermal stability and mesoporous structures.•The specific surface area reached a maximum of 143.1 m2/g after doping Ni atom into M-AlPO4.•The reaction with M-NiAlPO4 showed the yield (75.44%) and the selectivity (75.12%).

Acetalization of glycerol with acetone was examined using M-AlPO4/xAlPO4 (x = Zn, Cu, Ni, or Co) solid acid catalysts with enlarged surface areas. The relationship between the structural properties and the catalytic performances was investigated. The synthesized catalysts were systematically analyzed using various techniques, namely, XRD, SEM/TEM, EDX, BET surface area, pore size distribution, FTIR, UV–vis spectrophotometry and NH3-TPD. The XRD results suggested the formation of mesostructured amorphous materials. The SEM/TEM results showed that these materials had an ordered structure. All of the materials exhibited uniform pore size and high specific surface area. The strength of the acid sites of the M-AlPO4/xAlPO4 (x = Zn, Cu, Ni, or Co) solid acid catalysts was studied by NH3-TPD. UV–vis spectrophotometry was used as a novel method to measure the exact amount of acid sites of the M-AlPO4/xAlPO4 (x = Zn, Cu, Ni, or Co) solid acid catalysts. The resulting materials were found to exhibit excellent catalytic activity for the acetalization of glycerol with acetone. The reaction with M-NiAlPO4 showed the highest yield (75.44%) and the best selectivity (75.12%).

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Keywords
Glycerol; Acetalization; Mesostructured; Solid acids catalyst
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Design of highly efficient Zn-, Cu-, Ni- and Co-promoted M-AlPO4 solid acids: The acetalization of glycerol with acetone
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 496, 25 April 2015, Pages 32–39
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