Subsurface nickel boosts the low-temperature performance of a boron oxide overlayer in propane oxidative dehydrogenation.

ABSTRACT: Oxidative dehydrogenation of propane is a promising technology for the preparation of propene. Boron-based nonmetal catalysts exhibit remarkable selectivity toward propene and limit the generation of CO_x byproducts due to unique radical-mediated C-H activation. However, due to the high barrier of O-H bond cleavage in the presence of O₂, the radical initialization of the B-based materials requires a high temperature to proceed, which decreases the thermodynamic advantages of the oxidative dehydrogenation reaction. Here, we report that the boron oxide overlayer formed in situ over metallic Ni nanoparticles exhibits extraordinarily low-temperature activity and selectivity for the ODHP reaction. With the assistance of subsurface Ni, the surface specific activity of the BO

SUBMITTER: Gao X 

PROVIDER: S-EPMC10023692 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature