Novel Co/graphene oxide and Co/nanoporous graphene catalysts for Fischer-Tropsch reaction

摘要

For the first time, nanoporous graphene and graphene oxide sheets have been synthesized and used as supports for preparation of Co/graphene-based catalysts to evaluate their efficiency in Fischer-Tropsch synthesis and for comparison with the performance of Co/Al2O3 to study the effects of the carbon supports on the reaction. Outstanding results were obtained compared with the alumina counterpart. Application of nanoporous graphene yielded heavier hydrocarbons compared with the Co/Al2O3 catalyst, possibly due to the high surface area and intrinsic properties of the carbon nanostructures as effective hydrogen carriers. Use of graphene oxide and nanoporous graphene supports also resulted in high CO2 selectivity. However, the graphene-supported catalysts displayed lower C-1-C-4 hydrocarbon selectivity compared with the Al2O3 catalyst.