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MgO nanosheets, nanodisks, and nanofibers for the Meerwein–Ponndorf–Verley reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
39819 45837 2014 6 PDF Available
Title
MgO nanosheets, nanodisks, and nanofibers for the Meerwein–Ponndorf–Verley reaction
Abstract

•MgO nanosheets, nanodisks, and nanofibers were prepared by a hydrothermal method.•The nanosheets and nanodisks mainly exposed the (1 1 1) facets.•The nanofibers exposed a mixture of the (1 1 1), (1 0 0), and (1 1 0) planes.•The shape of MgO nanomaterials significantly affected the catalytic performance.

MgO nanosheets, nanodisks, and nanofibers were synthesized by a hydrothermal method with the aid of suitable surfactants. The nanosheets and nanodisks exposed the (1 1 1) facets mainly whereas the nanofibers exposed a mixture of the (1 1 1), (1 0 0), and (1 1 0) planes. The total number and the surface density of the basic sites followed the order nanosheets > nanodisks > nanofibers. When being used to catalyze the Meerwein–Ponndorf–Verley reaction between benzaldehyde and ethanol, the nanosheets and nanodisks showed much higher reaction rates than the nanofibers, primarily because of their large numbers of surface basic sites that might be linked to the preferential exposure of the {1 1 1} facets.

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Keywords
MgO; Morphology; Nanosheets; Nanodisks; Nanofibers; Basic sites
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MgO nanosheets, nanodisks, and nanofibers for the Meerwein–Ponndorf–Verley reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 475, 5 April 2014, Pages 76–81
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Full-text PDF Download
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