Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (5): 986-992.DOI: 10.1016/S1872-2067(11)60505-6

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Trivalent metal ions M3+ in M0.02Cu0.4Mg5.6Al1.98(OH)16CO3 layered double hydroxide as catalyst precursors for the hydrogenolysis of glycerol

XIA Shuixin, ZHENG Liping, NIE Renfeng, CHEN Ping, LOU Hui, HOU Zhaoyin   

  1. Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou, 310028, Zhejiang, China
  • Received:2012-10-31 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273198, 21075139) and Zhejiang Provincial Natural Science Foundation (LZ12B03001).

Abstract:

Trivalent metal ions M3+ in M0.02Cu0.4Mg5.6Al1.98(OH)16CO3 (M = Ru, Re) layered double hydroxides (LDHs) were successfully synthesized by coprecipitation. Bimetallic M-Cu/solid base catalysts with high metal dispersion were obtained after calcination and H2 reduction of these LDH precursors. These catalysts exhibited excellent performances for the hydrogenolysis of biomass-derived glycerol under mild conditions. The catalysts were stable when recycled five times. Characterizations indicated that the addition of Ru or Re enhanced the adsorption and activation of hydrogen on the surface of catalysts, which contributed to the high conversion of glycerol.

Key words: Layered double hydroxide, Bimetallic, Solid base, Glycerol, Hydrogenolysis, Propanediol