%0 Journal Article
%@ 23524928
%A Ali, S.
%A Zabidi, N.A.M.
%A Al-Marri, M.J.
%A Khader, M.M.
%D 2017
%F scholars:8811
%I Elsevier Ltd
%J Materials Today Communications
%K Alumina; Aluminum oxide; Carbon dioxide; Catalyst activity; Catalyst selectivity; Cobalt; Fischer-Tropsch synthesis; High resolution transmission electron microscopy; Particle size; Supports; Temperature programmed desorption; Transmission electron microscopy; X ray photoelectron spectroscopy, Active metal surface areas; Characterization techniques; Effect of the support; Fischer-Tropsch reaction; Fixed bed micro-reactor; Physicochemical property; Temperature-programmed reduction; Wet impregnation method, Nanocatalysts
%P 67-71
%R 10.1016/j.mtcomm.2017.01.004
%T Effect of the support on physicochemical properties and catalytic performance of cobalt based nano-catalysts in Fischer-Tropsch reaction
%U https://khub.utp.edu.my/scholars/8811/
%V 10
%X In this paper, comparative investigations of the effects of CNTs and γ-Al2O3 on the physicochemical properties and catalytic performances of Co based nano-catalyst during FTS have been presented. Catalysts were prepared via a wet impregnation method and characterized by various analytical techniques such as transmission electron microscopy (TEM), temperature programmed reduction (H2-TPR), carbon dioxide temperature programmed desorption (CO2-TPD) and X-ray photoelectron spectroscopy (XPS). Fischer-Tropsch reaction (FTS) was carried out in a fixed-bed microreactor (220 °C and 1 atm and with H2/CO = 2 v/v, SV of 12 L/g h). Various characterization techniques revealed that Co nanocatalysts supported on CNTs and Al2O3 were different in physicochemical properties. There was a stronger interaction between Co and Al2O3 support compared to that of CNTs support. CNTs support increased the reducibility, dispersion, active metal surface area and decreased Co particle size. A significant increase in CO conversion and FTS reaction rate was also observed over CNTs support compared to that of Co/Al2O3. Co/CNTs resulted in higher C5+ hydrocarbons selectivity compared to that of Co/Al2O3 catalyst. © 2017 Elsevier Ltd
%Z cited By 13