Fig. 1. Comparison of different catalysts for the conversion of glucose. Reaction conditions: 190 °C, 2 h, air, 225 mg glucose and 200 mg catalyst. LA: lactic acid, AA: acetic acid, FA: formic acid, and GLY: glycolic acid. Metal content of Sn-beta + Pb-beta: Sn = 0.2 mmol g⁻¹, Pb = 0.2 mmol g⁻¹.