Influence of Nanoscale Intimacy and Zeolite Micropore Size on the Performance of Bifunctional Catalysts for n-Heptane Hydroisomerization.

ABSTRACT: In this study, Pt nanoparticles on zeolite/γ-Al₂O₃ composites (50/50 wt) were located either in the zeolite or on the γ-Al₂O₃ binder, hereby varying the average distance (intimacy) between zeolite acid sites and metal sites from "closest" to "nanoscale". The catalytic performance of these catalysts was compared to physical mixtures of zeolite and Pt/γ-Al₂O₃ powders, which provide a "microscale" distance between sites. Several beneficial effects on catalytic activity and selectivity for n-heptane hydroisomerization were observed when Pt nanoparticles are located on the γ-Al₂O₃ binder in nanoscale proximity with zeolite acid sites, as opposed to Pt nanoparticles located inside zeolite

SUBMITTER: Oenema J 

PROVIDER: S-EPMC7723304 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature