Fig. 4: Leveraging the roles of surface hydroxyls to enhance reaction performance.
From: Surface hydroxyl-induced Pt0 clusters on TiO2 for synergistic water gas shift catalysis
a Scheme of dual roles of surface hydroxyls in optimizing the catalyst structure and participating in the reaction. b Temperature-dependent CO conversion of 0.3Pt/(TiO2-T-500) and 0.3Pt/(TiO2-A) catalysts with 0.3% loading for the WGS reaction. Reaction condition: 2% CO/10% H2O/N2, GHSV = 42, 000 mL·gcat–1·h–1. c Comparison of reaction rate with other Pt/TiO2 catalysts. d The stability 0.3Pt/(TiO2-T-500) and 0.3Pt/(TiO2-A) catalysts. Left: long-term stability at 250 °C of 0.3Pt/(TiO2-T-500) and 0.3Pt/(TiO2-A) catalysts. Right: the cyclic stability at 300 °C and 250 °C for 0.3Pt/(TiO2-T-500) at 84,000 mL·gcat–1·h–1.
