fig6
Figure 6. Catalytic performances of the catalysts of (A) CuAl, NiAl and CuNiAl. Reaction conditions: LA: 5 mmol, N2: 0.1 MPa, FA:LA = 2, catalyst: 50 mg, 1,4-dioxane 20 mL, 6 h, 200 °C. Other products include AL and gas (methane, propane, butane, CO2); (B) Effects of molar ratio of Ni:Cu:Al; (C) molar ratio of LA:FA; (D) reaction temperature on the conversion and selectivity. LA: Levulinic acid; FA: formic acid; AL: angelica lactone.
