Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 3, Issue 4, Pages 1108-1115Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cy20788e
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [21073023, 20906008]
- Fundamental Research Funds for the Central Universities [DUT12YQ03]
- Dalian University of Technology for a Sea-sky'' professorship
Ask authors/readers for more resources
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), H-2-temperature programmed reduction (H-2-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 H-2-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 degrees 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available