High C₂-C₄ selectivity in CO₂ hydrogenation by particle size control of Co-Fe alloy nanoparticles wrapped on N-doped graphitic carbon.

ABSTRACT: A catalyst based on first-row Fe and Co with a record of 51% selectivity to C₂-C₄ hydrocarbons at 36% CO₂ conversion is disclosed. The factors responsible for the C₂₊ selectivity are a narrow Co-Fe particle size distribution of about 10 nm and embedment in N-doped graphitic matrix. These hydrogenation catalysts convert CO₂ into C₂-C₄ hydrocarbons, including ethane, propane, n-butane, ethylene and propylene together with methane, CO. Selectivity varies depending on the catalyst, CO₂ conversion, and the operation conditions. Operating with an H₂/CO₂ ratio of 4 at 300°C and pressure on 5 bar, a remarkable combined 30% of ethylene and propylene at 34% CO₂ conversion w

SUBMITTER: Peng L 

PROVIDER: S-EPMC9062353 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature