Non-Oxidative Propane Dehydrogenation on CrO_x-ZrO₂-SiO₂ Catalyst Prepared by One-Pot Template-Assisted Method.

ABSTRACT: A series of CrO_x-ZrO₂-SiO₂ (CrZrSi) catalysts was prepared by a "one-pot" template-assisted evaporation-induced self-assembly process. The chromium content varied from 4 to 9 wt.% assuming Cr₂O₃ stoichiometry. The catalysts were characterized by XRD, SEM-EDX, temperature-programmed reduction (TPR-H₂), Raman spectroscopy, and X-ray photoelectron spectroscopy. The catalysts were tested in non-oxidative propane dehydrogenation at 500-600 °C. The evolution of active sites under the reaction conditions was investigated by reductive treatment of the catalysts with H₂. The catalyst with the lowest Cr loading initially contained amorphous Cr³⁺ and dispersed Cr⁶⁺ species. The latter reduced under reac

SUBMITTER: Golubina EV 

PROVIDER: S-EPMC9501860 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature