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- W1569368949 abstract "Multiwall carbon nanotubes (MWNTs) and alumina are combined to give a new type of nanohybrid for Fisher-Tropsch synthesis (FTS) catalyst support. Alumina nano-particles (10 wt%) were introduced directly on functionalized MWNTs by a modified sol-gel method. Microstructure observations show that alumina particles were homogeneously dispersed on the inside and outside of modified MWNTs surfaces. 15 wt% cobalt loading catalysts were prepared with this nanohybrid and γ-alumina as a reference, using a sol-gel technique and wet impregnation method respectively. These catalysts were characterized by TEM, XRD, N2-adsorption, H2 chemisorption and TPR. The deposition of cobalt nanoparticles synthesized by sol-gel technique on the MWNTs nanohybrid shift the reduction peaks to a low temperature, indicating higher reducibility for uniform cobalt particles. Nanohybrid also aided in high dispersion of metal clusters and high stability and performance of catalyst. The proposed MWNTs nanohybrid-supported cobalt catalysts showed the improved FTS rate (gHC/(gcat·min)), CO conversion (%), and water gas shift rate (WGS)(gCO2/(gcat·h)) of 0.012, 52, and 30E-3, respectively, as compared to those of 0.007, 25, and 18E-3, respectively, on the γ-alumina-supported cobalt catalysts with the same Co loading." @default.
- W1569368949 created "2016-06-24" @default.
- W1569368949 creator A5001353249 @default.
- W1569368949 creator A5040003176 @default.
- W1569368949 creator A5083362762 @default.
- W1569368949 date "2013-07-01" @default.
- W1569368949 modified "2023-10-15" @default.
- W1569368949 title "Synthesis and characterization of multiwall carbon nanotubes/alumina nanohybrid-supported cobalt catalyst in Fischer-Tropsch synthesis" @default.
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- W1569368949 doi "https://doi.org/10.1016/s2095-4956(13)60076-5" @default.
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