“…Based on theory study, HCP-Co was belonged to the D 3h point group and it exhibited a dihedral-like shape with two closed packed (0001) facets, while FCC-Co had an octahedron-like shape composed of (100), (110), (310) and (111) facets. In addition, the reaction rates for (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21), (10)(11), (10)(11)(12), and (11)(12)(13)(14)(15)(16)(17)(18)(19)(20) facets of HCP-Co were higher than that for the exposed facets of FCC-Co. [5] During the FT reaction process, many products including paraffins, olefins and oxygenates are generated simultaneously. For the traditional FT catalysts, paraffins are the main products with ASF distribution.…”