A PRACTICAL APPROACH FOR THE PREPARATION OF HIGH-ACTIVITY CU ZNO/ZRO2CATALYST FOR METHANOL SYNTHESIS FROM CO2 HYDROGENATION/

According to the features of CuC2O4. H2O and the colloid/precipitation theories, a practical approach for the preparation of Cu/ZnO-based ca talyst, which had high activity for methanol synthesis, was proposed a nd verified in experiments. Coprecipitation reaction in the ethanol so lution aias found to be an effective route for the preparation of a hi ghly active and selective catalyst. The characterization of XRD, N-2 p hysisorption, TEM and the measurement of the copper surface area by ni trous oxide titration revealed that preparation conditions have a sign ificant influence on the structure and surface properties of the precu rsors and the catalysts, as well as on the catalytic activities for me thanol synthesis from CO2 hydrogenation. (C) 1998 Elsevier Science B.V . All rights reserved.