【摘 要】
：
Highly active and selective Cu/SiO2 catalysts for hydrogenation of dimethyl oxalate(DMO) to ethylene glycol(EG) were successfully prepared by means of a conveni
【机 构】
：
State Key Laboratory of Clean Energy Utilization
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Highly active and selective Cu/SiO2 catalysts for hydrogenation of dimethyl oxalate(DMO) to ethylene glycol(EG) were successfully prepared by means of a convenient one-pot synthetic method with tetraethoxysilane(TEOS) as the source of silica.XRD,H2-TPR,SEM,TEM,XRF and N2 physisorption measurements were performed to characterize the texture and structure of Cu/SiO2 catalysts with different copper loadings.The active components were highly dispersed on SiO2 supports.Furthermore,the coexistence of Cu0 and Cu+ contributed a lot to the excellent performance of Cu-TEOS catalysts.The DMO conversion reached 100％ and the EG selectivity reached 95％ at 498 K and 2 MPa with a high liquid hourly space velocity over the 27-Cu-TEOS catalyst with an actual copper loading of 19.0％(mass fraction).
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