An environmentally benign and low-cost approach to synthesis of thermally stable industrial catalyst Cu/SiO2 for the hydrogenation of dimethyl oxalate to ethylene glycol

The performances of the 20 wt.% Cu/SiO2 catalysts prepared by ammonia evaporation (AE) and by ammonium carbonate precipitation (AC). (a) Selectivity to EG and MG and (b) DMO conversion.