| 저자(한글) |
Yang, G.Y.,Ke, Y.H.,Ren, H.F.,Liu, C.L.,Yang, R.Z.,Dong, W.S. |
| 초록 |
Zirconia-supported copper oxide catalysts with various compositions were prepared and characterized by atomic absorption spectroscopy, N 2 physical adsorption, temperature programmed reduction, powder X-ray diffraction and X-ray photoelectron spectroscopy. These catalysts were evaluated for the conversion of glycerol to lactic acid in aqueous solution in the presence of a base and under an inert atmosphere. The results showed that CuO/ZrO 2 with ~30% Cu loading exhibited the highest activity for the conversion of glycerol. Under optimum conditions, 100% glycerol conversion and 94.6% selectivity for lactic acid were obtained over 30%CuO/ZrO 2 when reacting 10mL of glycerol solution (1.4M), using 0.2g catalyst in the presence of NaOH (1:1 NaOH/glycerol molar ratio) at 453K and 1.4MPaN 2 for 8h. Moreover, the reusability of 30%CuO/ZrO 2 was investigated, and a reaction mechanism for the conversion of glycerol is proposed. |
