NDLI: Controlled preparation and characterization of supported CuCr<sub>2</sub>O<sub>4</sub> catalysts for hydrogenolysis of highly concentrated glycerol

Content Provider	Royal Society of Chemistry (RSC)
Author	Xiu, Jinghai Williams, Christopher T. Su, Dangsheng Wang, Xinkui Xiao, Zihui Liang, Changhai Zhang, Bingsen
Copyright Year	2013
Abstract	Supported Cu–Cr catalysts were prepared by a non-alkoxide sol–gel route, and characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), H2-temperature programmed reduction (H2-TPR) and X-ray photoelectron spectroscopy (XPS) measurement. Their structures were significantly tuned by the Cu–Cr molar ratio. CuCr2O4, CuCr2O4–CuO and CuCr2O4–Cr2O3 structures were confirmed in CuCr(0.5), CuCr(4) and CuCr(0.25) catalysts, respectively. A direct interaction between CuCr2O4 and CuO or Cr2O3 in CuCr(4) and CuCr(0.25) catalyst was observed by the H2-TPR and XPS results. The catalytic performance of Cu–Cr catalysts with various structures was examined by hydrogenolysis reaction of high concentrated glycerol. Under mild conditions (2.0 MPa and 130 °C) and high concentration (100 wt%), the maximum conversion (52%) was obtained over the CuCr(0.5) catalyst, while the CuCr(4) catalyst gave the highest selectivity of 1,2-PD (up to 100%). This finding will result in the production of less waste water and lower energy consumption in the following separation steps during glycerol hydrogenolysis.
Starting Page	1108
Ending Page	1115
Page Count	8
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	3
Issue Number	4
Journal	Catalysis Science & Technology
DOI	10.1039/c2cy20788e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	X-ray crystallography Copper(II) oxide Cu Hydrogenolysis High-resolution transmission electron microscopy Glycerol Photoemission spectroscopy X-ray photoelectron spectroscopy
Content Type	Text
Resource Type	Article
Subject	Catalysis

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