relation: https://khub.utp.edu.my/scholars/1850/ title: Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis creator: Ali, S. creator: Zabidi, N.A.M. creator: Subbarao, D. description: 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. date: 2011 type: Article type: PeerReviewed identifier: Ali, S. and Zabidi, N.A.M. and Subbarao, D. (2011) Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis. Journal of Natural Gas Chemistry, 20 (6). pp. 659-663. ISSN 10039953 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-83455246790&doi=10.1016%2fS1003-9953%2810%2960243-5&partnerID=40&md5=87ce0fa83f1699e7cebae8c8ac3a2f1d relation: 10.1016/S1003-9953(10)60243-5 identifier: 10.1016/S1003-9953(10)60243-5