Titania-Decorated Silicon Carbide-Containing Cobalt Catalyst for Fischer–Tropsch Synthesis

Citations Over TimeTop 10% of 2013 papers

Abstract

The metal–support interactions of titanium dioxide decorated silicon carbide (β-SiC)-supported cobalt catalyst for Fischer–Tropsch synthesis (FTS) were explored by a combination of energy-filtered transmission electron microscopy (EFTEM), 59Co zero-field nuclear magnetic resonance (59Co NMR), and other conventional characterization techniques. From the 2D elemental maps deduced by 2D EFTEM and 59Co NMR analyses, it can be concluded that the nanoscale introduction of the TiO2 into the β-SiC matrix significantly enhances the formation of small and medium-sized cobalt particles. The results revealed that the proper metal–support interaction between cobalt nanoparticles and TiO2 led to the formation of smaller cobalt particles (90%). In addition, the adequate meso- and macro-pores of the SiC-based support facilitated intimate contact between the reactants and active sites and also accelerated the evacuation of the intermediate products. It was also worth noting that a superior and stable FTS specific rate of 0.56 gC5+ gcatalyst–1 h–1 together with high C5+ selectivity of 91% were obtained at common industrial content of 30 wt % cobalt.

Related Papers

• → Cobalt supported on carbon nanofibers- a promising novel Fischer-Tropsch catalyst(2004)98 cited
• → Enhancing cobalt dispersion in supported Fischer-Tropsch catalysts via controlled decomposition of cobalt precursors(2009)40 cited
• → Genesis of active sites in silica supported cobalt Fischer-Tropsch catalysts: effect of cobalt precursor and support texture(2004)21 cited
• → Carbon Coated Supports for Cobalt Based Fischer–Tropsch Catalysts(2013)27 cited
• → Cobalt loss from Co-ZrO2 catalyst for Fischer-Tropsch synthesis in continuously stirred tank reactor(2008)4 cited