Kang, Jung Shik Awate, S. V. Lee, Yun Ju Kim, So Jung Park, Moon Ju Lee, Sang Deuk Hong, Suk-In Moon, Dong Ju 2024-01-20T19:31:22Z 2024-01-20T19:31:22Z 2021-09-02 2010-05 1533-4880 https://pubs.kist.re.kr/handle/201004/131506 Nano-sized cobalt supported catalysts were prepared for Fischer-Tropsch synthesis in gas-to-liquid (GTL) process. The dependence of crystallite size and reducibility of Co3O4 on the supports were investigated with FTS activity. XRD peaks revealed nano crystallites (<5.47 nm) of Co3O4 crystallites. TEM showed round shaped particles with size less than 5 nm. Support with higher acidity decreased crystallite size Of Co3O4. XRD data of used catalysts showed Co3O4 crystallites smaller than 3.5 nm which do not reduce easily to Coo state. The crystallite size of Co3O4 plays a role in its reduction to Co-0. TPR results showed that the reduction temperature shifts to higher temperature due to metal-support interaction. The variation in the activity of the catalysts depends on the support which in turn affects the crystallite size, dispersion, reducibility and activity of Co species in Fischer-Tropsch Synthesis (FTS). In this study, Co/Al2O3 showed higher CO conversion than the other catalysts. However, the C5+ production was in order Co/SiO2 (78.1%) > Co/Al2O3 (70.0%) > Co/R_TiO2 (61 %) > Co/A_TiO2 (57.5%). English AMER SCIENTIFIC PUBLISHERS Nano-Sized Cobalt Based Fischer-Tropsch Catalysts for Gas-to-Liquid Process Applications Article 10.1166/jnn.2010.2339 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.10, no.5, pp.3700 - 3704 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 10 5 3700 3704 scie scopus 000275626200147 2-s2.0-77955006302 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article; Proceedings Paper Nano-Sized Cobalt Catalyst Nano Crystallites of Co3O4 Fischer-Tropsch (FT) Gas to Liquid (GTL) Process