Atomic-scale changes of silica-supported catalysts with nanocrystalline or amorphous gallia phases: implications of hydrogen pretreatment on their selectivity for propane dehydrogenation
Pedro Castro-Fernández, Alexander I. Serykh, Alexander V. Yakimov, Igor P. Prosvirin, Andrey V. Bukhtiyarov, Paula M. Abdala, Christophe Copéret, Alexey Fedorov, Christoph R. Müller
Abstract
We explore how H 2 pretreatment changes the structure of two gallia-based propane dehydrogenation catalysts, viz. crystalline γ/β-Ga 2 O 3 and amorphous Ga 2 O 3 supported on silica, and how it affects their activity, selectivity and stability on stream.
Topics & Concepts
DehydrogenationSelectivityNanocrystalline materialCatalysisPropaneAmorphous solidHydrogenChemical engineeringMaterials scienceChemistryNanotechnologyOrganic chemistryEngineeringCatalysis and Oxidation ReactionsCatalytic Processes in Materials ScienceZeolite Catalysis and Synthesis