<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Effect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction"^^ . "Niobium-promoted Fe/CNTs catalysts were prepared using a wet impregnation method. Samples were characterized by nitrogen adsorption, H2-TPR, TPD, XRD and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed microreactor at 220°C, 1 atm and H2/CO=2 for 5 h. Addition of niobium into Fe/CNTs increased the dispersion, decreased the average size of iron oxide nanoparticles and the catalyst reducibility. Niobium-promoted Fe catalyst resulted in appreciable increase in the selectivity of C5+ hydrocarbons and suppressed methane formation. These effects were more pronounced for the 0.04Nb/Fe/CNTs catalyst, compared to those observed from other niobium compositions. The 0.04Nb/Fe/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 67.5 and reduced the methane selectivity by a factor of 59.2."^^ . "2012" . "40" . "1" . . "Science Press"^^ . . . "Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology"^^ . . . "2097213X" . . . . . . . . . . . . . "S."^^ . "Ali"^^ . "S. Ali"^^ . . "N.A.M."^^ . "Zabidi"^^ . "N.A.M. Zabidi"^^ . . "D."^^ . "Subbarao"^^ . "D. Subbarao"^^ . . . . . "HTML Summary of #3204 \n\nEffect of niobium promoter on iron-based catalyst for Fischer-Tropsch reaction\n\n" . "text/html" . .