CO₂ Hydrogenation to Methanol over Mesoporous SiO₂-Coated Cu-Based Catalysts.

ABSTRACT: Although chemical promotion led to essential improvements in Cu-based catalysts for CO₂ hydrogenation to methanol, surpassing structural limitations such as active phase aggregation under reaction conditions remains challenging. In this report, we improved the textural properties of Cu/In₂O₃/CeO₂ and Cu/In₂O₃/ZrO₂ catalysts by coating the nanoparticles with a mesoporous SiO₂ shell. This strategy limited particle size up to 3.5 nm, increasing metal dispersion and widening the metal-metal oxide interface region. Chemometric analysis revealed that these structures could maintain high activity and selectivity in a wide range of reaction conditions, with methanol space-time yields up to 4 times higher than t

SUBMITTER: Vieira LH 

PROVIDER: S-EPMC11342343 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature