Structure-Activity Relationships for Ethanol Dehydrogenation to Acetaldehyde by Silica-Supported Zinc Oxide Catalysts.

ABSTRACT: Silica-supported ZnO efficiently catalyzes the nonoxidative dehydrogenation of ethanol to acetaldehyde, which is relevant for production of 1,3-butadiene from bioethanol. Characterization with in situ spectroscopies under dehydrated conditions (high sensitivity-low energy ion scattering (HS-LEIS), diffuse reflectance (DR) UV-vis, X-ray absorption spectroscopy (XAS), diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS), inelastic neutron scattering (INS), and UV Raman), and ammonia adsorption probed by temperature-programmed desorption followed by DRIFTS and mass spectrometry (DRIFTS-MS NH₃-TPD), and DFT calculations revealed that the supported ZnO _x phase was present as isolated surface ZnO _x sites on SiO₂, wi

SUBMITTER: Moskowitz BM 

PROVIDER: S-EPMC12538551 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature