Direct conversion of CO and H<sub>2</sub>O into liquid fuels under mild conditions.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 30918254.
- Also identified by DOI 10.1038/s41467-019-09396-3 and PMC identifier 6437185.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Although enormous progress has been made in C<sub>1</sub> chemistry and CO<sub>2</sub> 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 H<sub>2</sub>O to liquid fuels (i.e., liquid hydrocarbons) at low temperature (≤200 °C) in aqueous phase (i.e., in a benign solvent), in which H<sub>2</sub>O 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-Mo<sub>2</sub>C/C + Ru/C, which can directly convert CO and H<sub>2</sub>O in aqueous phase to liquid hydrocarbons with a production rate of 8.7 mol<sub>-CH2-</sub> mol<sub>Ru</sub><sup>-1</sup> h<sup>-1</sup> and selectivity up to 68.4% of C<sub>5+</sub> hydrocarbons at 200 °C.