TY  - JOUR
AV  - none
N2  - Cobalt-iron bimetallic catalysts promoted with Nb, Ru or Rh and supported on multiwalled-carbon nanotubes (MWCNTs) were synthesized using a reverse-microemulsion method. The synthesized catalysts were characterized by TEM, N2-physical adsorption, XPS, XRD, and TPD/R/O methods. XPS analyses showed an increasing trend of the Co2+/Co3+ atomic ratios for the promoted catalysts, compared to that of the un-promoted Coâ??Fe/CNTs catalyst. The dispersion for the un-promoted Coâ??Fe /CNTs catalyst was 15.9 and it increased to 23.0, 20.4, and 17.7 in the presence of 0.1 wt. Nb, Ru, and Rh promoter, respectively. The addition of Nb-promoter also improved the reducibility of the catalyst as exhibited by the H2-TPR study. The presence of Nb, Ru, and Rh promoters improved the catalytic performance in a Fischerâ??Tropsch synthesis where the TOF over the un-promoted catalyst increased from 5.1 to 6.2, 5.7, 5.2 Ã? 10â??1 sâ??1 upon the addition of Nb, Ru and Rh promoter, respectively. Thus, the Nb promoter was a better promoter than Ru and Rh for the Coâ??Fe/CNTs catalyst. Graphical Abstract: Figure not available: see fulltext. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
IS  - 1
N1  - cited By 0
KW  - Catalyst supports; Iron; Microemulsions; Multiwalled carbon nanotubes (MWCN); Physicochemical properties; X ray photoelectron spectroscopy
KW  -  Bimetallic catalysts; Effect of promoters; Multi-walled-carbon-nanotubes; Physicochemical property; Promoted catalysts; Promoter; Reverse microemulsions; Rh promoters; Synthesised; ]+ catalyst
KW  -  Cobalt
TI  - Effects of Promoters on the Physicochemical Properties of Cobalt-Iron Catalysts Supported on Multiwalled-Carbon Nanotubes
SP  - 245
ID  - scholars20292
Y1  - 2024///
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85148210860&doi=10.1007%2fs10562-023-04294-2&partnerID=40&md5=b6d12c867ffab685afeb8f646266aad0
A1  - Hamid, H.H.
A1  - Mohd Zabidi, N.A.
A1  - Shaharun, M.S.
JF  - Catalysis Letters
VL  - 154
EP  - 258
ER  -