Abstract
Non-chromium Cu:Al nano catalyst prepared by simultaneous co-precipitation and digestion method without any template or stabilizer, showed three times higher activity than the bulk Cu–Cr catalyst for hydrogenolysis of glycerol in both isopropanol and water solvents, with the selectivity to 1,2-Propanediol (1,2-PDO) as high as 91% at 493 K and H2 pressure of 7 MPa in 5 h. XRD pattern showed the presence of Cu+ species in the activated Cu:Al nano catalyst. Although Cu+ is catalytically inactive in glycerol hydrogenolysis reaction, the presence of Cu+ helps to stabilize the particle size in a narrow range of 7–11 nm by inhibiting the sintering of copper particles under reaction conditions.
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We gratefully acknowledge Council of Scientific and Industrial Research, New Delhi for its financial support to this work under NMITLI program.
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Mane, R.B., Hengne, A.M., Ghalwadkar, A.A. et al. Cu:Al Nano Catalyst for Selective Hydrogenolysis of Glycerol to 1,2-Propanediol. Catal Lett 135, 141–147 (2010). https://doi.org/10.1007/s10562-010-0276-5
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DOI: https://doi.org/10.1007/s10562-010-0276-5