Bimetallic Pd-Cu Catalysts for CO2 Hydrogenation to Methanol

This work reports on new Pd-Cu bimetallic catalysts for CO₂ hydrogenation to methanol. Strong synergistic effect for promoting methanol formation was observed over mesoporous silica supported Pd-Cu bimetallic catalysts with Pd atomic ratios within 0.25-0.34. Detailed characterization results suggest that specific Pd-Cu alloy formation is crucial for the bimetallic promotion.