Gas Phase Glycerol Valorization over Ceria Nanostructures with Well-Defined Morphologies.

ABSTRACT: Glycerol solutions were vaporized and reacted over ceria catalysts with different morphologies to investigate the relationship of product distribution to the surface facets exposed, particularly, the yield of bio-renewable methanol. Ceria was prepared with cubic, rodlike, and polyhedral morphologies via hydrothermal synthesis by altering the concentration of the precipitating agent or synthesis temperature. Glycerol conversion was found to be low over the ceria with a cubic morphology, and this was ascribed to both a low surface area and relatively high acidity. Density functional theory calculations also showed that the (100) surface is likely to be hydroxylated under reaction conditions which could limit the availability of basic sites. Methanol space-time-yields over the polyhedral ceri

SUBMITTER: Smith LR 

PROVIDER: S-EPMC8154328 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature