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- W1585426920 abstract "The hydrogenation of CO over Co/Nb 2 O 5 , Co/Al 2 O 3 and niobia-promoted Co/Al 2 O 3 catalysts was investigated after H 2 reduction at 573 and 773K. The Co/5%Nb 2 O 5 /Al 2 O 3 catalyst did not present strong metal support interaction after reduction at 773K. However, the increase of Nb 2 O 5 content (Co/20%Nb 2 O 5 /Al 2 O 3 ) changed the selectivity of CO hydrogenation, presenting a different product distribution after reduction at 773K. The methane selectivity decreased while the C 5 + selectivity enhanced significantly. Such effect seems to be less pronounced on the niobia-promoted Co/Al 2 O 3 compared to Co/Nb 2 O 5 . DRS and TPR results showed that the cobalt particles still interact with alumina support even at higher niobia loading. Results evidenced the presence of a Co 2+ surface phase, which was probably the precursor of the SMSI effect." @default.
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- W1585426920 date "2000-01-01" @default.
- W1585426920 modified "2023-09-26" @default.
- W1585426920 title "Effect of Nb2O5 addition to CO/Al2O3 catalyst on CO hydrogenation reaction" @default.
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- W1585426920 doi "https://doi.org/10.1016/s0167-2991(00)80601-1" @default.
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