摘要
The amalgamation of an appropriate cocatalyst is a proficient technique to expand the efficacy of precious Pt-based catalytic materials. In this study, Mo 2 N–TiO 2 with regularly distributed Mo 2 N particles were simply prepared for the deposition of precious Pt nanoparticles (NPs). Numerous techniques were implemented to thoroughly explore, how synthesis method influence the bulk structural, interfacial and cata1ytic features of the as-prepared 3 wt%Pt/TiO 2 and 3 wt%Pt/Mo 2 N–TiO 2 catalytic materials. The catalytic results obviously show that the 3 wt%Pt/Mo 2 N–TiO 2 catalyst has exceptional hydrogenation performance when compared to 3 wt%Pt/TiO 2 catalyst. The 3 wt%Pt/Mo 2 N–TiO 2 catalyst displayed high conversion (72.4 %) of cinnamaldehyde (CAL) with a maximum selectivity (82.1 %) towards C O bond. The excellent hydrogenation performance is attributed to the synergistic interaction taking place between Pt NPs and Mo 2 N entities of 3 wt%Pt/Mo 2 N–TiO 2 . Also, the enhanced standardized dispersal of Pt NPs on the Mo 2 N–TiO 2 surface causes more exposed Pt 0 sites on the 3 wt%Pt/Mo 2 N–TiO 2 surface, which is productive for the improved activation and conversion of C O bond of CAL to yield COL . In addition, the 3 wt%Pt/Mo 2 N–TiO 2 catalyst retained its higher catalytic activity for consecutive five successive rounds without substantial loss in either conversion or selectivity.
危险品化学品经营许可证(带存储)