Catalysis Letters, Vol.141, No.8, 1207-1214, 2011
Enhancing the Fischer-Tropsch Synthesis Activity of Co-based Catalysts by Adding ZrO (x) to the SiO2 Support and Chelating Ligands to the Co-precursor
Co/ZrO (x) /SiO2 catalysts with enhanced dispersion of Co-0 and turnover frequency were successfully prepared combining two different promotion effects, i.e., modifications of SiO2 surface with ZrO (x) by liquid phase deposition and influencing coordination structure of Co species using chelating agents or glycols. The catalysts exhibited similar to 6.3-fold higher CO conversion than Co/SiO2 and those promoted by organic additives or ZrO (x) alone, indicating activity enhancement was induced by cooperation of these two promoters.