초록 |
Converting CO2 from a detrimental greenhouse gas into value-added fuels and chemicals not only contributes to mitigating CO2 emissions, but also reduces dependence on petrochemicals. Unfortunately, the activation of CO2 and its hydrogenation to heavy hydrocarbons are very challenging since CO2 is a fully oxidized, thermodynamically stable and chemically inert molecule. Most researches on CO2 hydrogenation focus on short-chain products, such as methane, methanol, formic acid, et al. Herein, we succeeded in preparing a highly efficient, stable, and multifunctional iron-based catalyst for direct production of long chain hydrocarbons, such as gasoline, linear -olefins and isoparaffins. The catalyst for gasoline production achieves a selectivity to C5–C11 of 78%, as well as a very low selectivity towards CH4 and CO under industrial relevant conditions, and gasoline fraction are mainly isoparaffins and aromatics thus favouring the octane number. |