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Updated: Jun 15, 2025

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
Published on: July 18, 2017
CO2 Hydrogenation to Methanol over Mesoporous SiO2-Coated Cu-Based Catalysts
Luiz H Vieira1, Marco A Rossi1, Letícia F Rasteiro2
1São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil.
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 those of the uncoated catalysts.
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