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Graphene oxide as a facile solid acid catalyst for the production of bioadditives from glycerol esterification

Paper ID Volume ID Publish Year Pages File Format Full-Text
50480 46796 2015 4 PDF Available
Title
Graphene oxide as a facile solid acid catalyst for the production of bioadditives from glycerol esterification
Abstract

•GO is a highly active, selective and reusable catalyst for glycerol esterification.•A 90.2% combined selectivity of glyceryl diacetate and triacetate was achieved.•GO can reuse four consecutive runs without obvious deactivation.•SO3H groups of GO were identified as the active species for glycerol esterification.

Graphene oxide (GO) has proved to be a highly active and reusable solid acid catalyst for glycerol esterification with acetic acid in the synthesis of bioadditives diacylglycerol (DAG) and triacylglycerol (TAG). The effects of reaction temperature, molar ratio of acetic acid to glycerol, catalyst amount and reaction time were investigated. A 90.2% combined selectivity of DAG and TAG with complete glycerol conversion was achieved at 120 °C for 6 h over GO. Final characterization shows that the active site of GO is the remaining SO3H group.

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Keywords
Glycerol; Esterification; Graphene oxide; Bioadditive; Diacylglycerol; Triacylglycerol
First Page Preview
Graphene oxide as a facile solid acid catalyst for the production of bioadditives from glycerol esterification
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 62, 5 March 2015, Pages 48–51
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis