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- W4313202064 abstract "Designing efficient non-precious metal catalysts for CO2 hydrogenation is a significant challenge. Cobalt-based catalysts often failed to catalyze the reverse water-gas shift (RWGS) reaction with high CO selectivity and stability. Herein, nitrogen-doped carbon (N-C) immobilized single-atom Co-N4 catalyst with 5% Co loading were prepared by anchoring strategy through regulating the cobalt species coordination structure. The stable single-atom catalyst achieves almost 100% CO selectivity and a high CO2 conversion of 52.4% at 500 °C during CO2 hydrogenation, while the 20% Co-N-C nanoparticle catalyst favored CH4 formation. The experiments and density functional theory (DFT) calculations revealed that atomically dispersed Co-N4 site followed the hydrogen-assisted pathway in which the intermediate COOH* was desorbed and dissociated into CO, whereas the Co nanoparticle catalysts mainly followed the direct dissociation. This study provided a new strategy for designing Co-based RWGS catalysts with excellent performance." @default.
- W4313202064 created "2023-01-06" @default.
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- W4313202064 date "2023-05-01" @default.
- W4313202064 modified "2023-10-13" @default.
- W4313202064 title "Single-atom Co-N-C catalysts for high-efficiency reverse water-gas shift reaction" @default.
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- W4313202064 doi "https://doi.org/10.1016/j.apcatb.2022.122298" @default.
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