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Catalysts 2015, 5(4), 2039-2051; doi:10.3390/catal5042039

Selective Oxidation of Glycerol with 3% H2O2 Catalyzed by LDH-Hosted Cr(III) Complex

Department of Environment and Technology, Nanjing Institute of Technology, Nanjing 211167, China
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Author to whom correspondence should be addressed.
Academic Editor: Stuart H. Taylor
Received: 22 October 2015 / Revised: 20 November 2015 / Accepted: 23 November 2015 / Published: 27 November 2015
(This article belongs to the Special Issue Catalysts for Selective Oxidation)
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Abstract

A series of layered double hydroxides (LDHs) –hosted sulphonato-salen Cr(III) complexes were prepared and characterized by various physico-chemical measurements, such as Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), powder X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM) and elemental analysis. Additionally, their catalytic performances were investigated in the selective oxidation of glycerol (GLY) using 3% H2O2 as an oxidant. It was found that all the LDH-hosted Cr(III) complexes exhibited significantly enhanced catalytic performance compared to the homogeneous Cr(III) complex. Additionally, it was worth mentioning that the metal composition of LDH plates played an important role in the catalytic performances of LDH-hosted Cr(III) complex catalysts. Under the optimal reaction conditions, the highest GLY conversion reached 85.5% with 59.3% of the selectivity to 1,3-dihydroxyacetone (DHA). In addition, the catalytic activity remained after being recycled five times. View Full-Text
Keywords: layered-double hydroxides; Cr(III) complex; 1,3-dihydroxyacetone; glycerol layered-double hydroxides; Cr(III) complex; 1,3-dihydroxyacetone; glycerol
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wu, G.; Wang, X.; Jiang, T.; Lin, Q. Selective Oxidation of Glycerol with 3% H2O2 Catalyzed by LDH-Hosted Cr(III) Complex. Catalysts 2015, 5, 2039-2051.

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