<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis"^^ . "Cobalt-based catalysts were prepared by a wet impregnation method on carbon nanotubes (CNTs) support and promoted with niobium. Samples were characterized by nitrogen adsorption, TEM, XRD, TPR, TPO and H 2-TPD. Addition of niobium increased the dispersion of cobalt but decreased the catalysts reducibility. Fischer-Tropsch synthesis (FTS) was carried out in a fixed-bed microreactor at 543 K, 1 atm and H 2/CO = 2 for 5 h. Addition of niobium enhanced the C 5+ hydrocarbons selectivity by 39 and reduced methane selectivity by 59. These effects were more pronounced for 0.04Nb/Co/CNTs catalyst, compared with those observed for other niobium compositions. © 2011 CAS/DICP. All rights reserved."^^ . "2011" . . "20" . "6" . . "Journal of Natural Gas Chemistry"^^ . . . "10039953" . . . . . . . . . . . . . "D."^^ . "Subbarao"^^ . "D. Subbarao"^^ . . "N.A.M."^^ . "Zabidi"^^ . "N.A.M. Zabidi"^^ . . "S."^^ . "Ali"^^ . "S. Ali"^^ . . . . . "HTML Summary of #1850 \n\nDevelopment of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis\n\n" . "text/html" . .