Large-scale synthesis of uniformly loaded cobalt nanoparticles on alumina for efficient clean fuel production

Abstract

Large-scale synthesis of cobalt nanoparticles supported on alumina (Co/Al2O3), which has well dispersed metallic cobalt around 15 nm, was conducted via a simple melt infiltration process of a cobalt hydrate salt and subsequent thermal reduction. The catalytic performance of Co/Al2O3 was studied for Fischer-Tropsch synthesis in order to optimize the liquid fuel productivity for target hydrocarbon products controlled by reaction pressures and temperatures. The catalyst showed promising CO conversions up to 76% with high hydrocarbon productivity (∼1.0 gHC gcat−1 h−1) and good stability.