Abstract
Although enormous progress has been made in C1 chemistry and CO2 conversion in recent years, it is still a challenge to develop new carbon resource transformation protocols especially those lead to the production of liquid fuels with high selectivity under mild conditions (e.g., under low temperature and using benign solvent). Herein, we present a novel and energy-efficient catalytic route to directly transform CO and H2O to liquid fuels (i.e., liquid hydrocarbons) at low temperature (≤200 °C) in aqueous phase (i.e., in a benign solvent), in which H2O served as both hydrogen source and solvent for the liquid fuel production. The key to the catalytic process is the construction of a highly efficient tandem catalyst Pt-Mo2C/C + Ru/C, which can directly convert CO and H2O in aqueous phase to liquid hydrocarbons with a production rate of 8.7 mol-CH2- molRu−1 h−1 and selectivity up to 68.4% of C5+ hydrocarbons at 200 °C.
Highlights
Enormous progress has been made in C1 chemistry and CO2 conversion in recent years, it is still a challenge to develop new carbon resource transformation protocols especially those lead to the production of liquid fuels with high selectivity under mild conditions
Aiming to achieve this goal, we report here an energy-efficient catalytic route to directly convert CO and H2O into liquid fuels at low temperatures (≤200 °C) in aqueous phase, in which H2O served as both hydrogen source and solvent
In our previous work[22,23,24], we demonstrated that Fischer-Tropsch synthesis (FTS) reactions could be achieved in aqueous phase by Ru- or Co-based nanoparticle catalysts at low temperatures
Summary
Enormous progress has been made in C1 chemistry and CO2 conversion in recent years, it is still a challenge to develop new carbon resource transformation protocols especially those lead to the production of liquid fuels with high selectivity under mild conditions (e.g., under low temperature and using benign solvent). If we can develop a reaction process that can directly convert CO and H2O into liquid fuels, it will be a key advance for the COx resource utilization Aiming to achieve this goal, we report here an energy-efficient catalytic route to directly convert CO and H2O into liquid fuels at low temperatures (≤200 °C) in aqueous phase, in which H2O served as both hydrogen source and solvent. It will be interesting to see if H2O can serve as a hydrogen provider (without adding extra H2 gas) to react with CO for producing liquid hydrocarbons
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