The structural decoration of Ru catalysts by boron for enhanced propane dehydrogenation.

ABSTRACT: Propane dehydrogenation (PDH) is an efficient technology for the direct production of propylene. Nevertheless, current PDH catalysts mainly rely on precious Pt or toxic Cr and especially undergo severe coke deposition. Herein, we report a Ru catalyst decorated by boron species (Ru-3B/Al₂O₃), which exhibits high catalytic performance for PDH. HAADF-STEM, EELS, and CO-FTIR characterization are used to identify the surface structure of the Ru active component, which shows that the high-energy unsaturated coordination sites, including corners, edges and step atoms for Ru-3B/Al₂O_3, are appropriately modified by BO_x species. The encapsulation of high-energy active sites prone to C-C cracking and deep dehydrogenation leads to higher propylene

SUBMITTER: Yang T 

PROVIDER: S-EPMC11630713 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature