Fig. 6: Long-term stability.

Durability test for the supported Pt and commercial Cu/ZnO/Al₂O₃ catalysts at the RWGS reaction conditions of 10 mg catalyst, 10 mL min⁻¹ CO₂, 30 mL min⁻¹ H_2, and 5 mL min⁻¹ N₂ (internal standard for GC analysis), 250 °C and 1 atm.