Koo, Hyun-Mo Lee, Bal Sang Park, Myung-June Moon, Dong Ju Roh, Hyun-Seog Bae, Jong Wook 2024-01-20T10:33:03Z 2024-01-20T10:33:03Z 2021-09-04 2014-02 2044-4753 https://pubs.kist.re.kr/handle/201004/127192 The effects of Al2O3 modification of the beta-SiC support on Fischer-Tropsch synthesis (FTS) catalysts were investigated in terms of the dispersion of cobalt particles through different metal support interactions for higher CO conversion and stability. The SiC support was previously modified using a alumina precursor with 0-15 wt% in order to increase the surface area and to enhance a dispersion of Co3O4 particles. The alumina-modified SiC support at an optimal amount of Al2O3 showed higher catalytic performance and stability compared with the unmodified Co-SiC catalyst. The optimum concentration of alumina for higher catalytic performance is found to be around 10 wt% Al2O3 on the SiC support. The observed higher CO conversion and stability are mainly attributed to the formation of adjacent cobalt-alumina complexes through an increase of cobalt dispersion and the enhanced interactions between cobalt and alumina particles. The enhanced interactions of cobalt-alumina are also responsible for a lower aggregation of metallic cobalt particles by forming smaller cobalt particles around 13 nm in size, which was confirmed using X-ray photoelectron spectroscopy, temperature-programmed reduction and TEM analyses mainly. English ROYAL SOC CHEMISTRY FILAMENTOUS CARBON SUPPORT METHANE SILICA DEACTIVATION PHOSPHATE MONOXIDE CO/AL2O3 FUELS XPS Fischer-Tropsch synthesis on cobalt/Al2O3-modified SiC catalysts: effect of cobalt-alumina interactions Article 10.1039/c3cy00684k 1 CATALYSIS SCIENCE & TECHNOLOGY, v.4, no.2, pp.343 - 351 CATALYSIS SCIENCE & TECHNOLOGY 4 2 343 351 scie scopus 000329927900009 2-s2.0-84892574120 Chemistry, Physical Chemistry Article FILAMENTOUS CARBON SUPPORT METHANE SILICA DEACTIVATION PHOSPHATE MONOXIDE CO/AL2O3 FUELS XPS FT Synthesis Cobalt/Al2O3 SiC catalyst