Metal-organic framework-mediated synthesis in catalysis
Lide Oar-Arteta Gonzalez (TU Delft - Applied Sciences)
Tim Wezendonk (TU Delft - Applied Sciences)
Xiaohui Sun (TU Delft - Applied Sciences)
Freek Kapteijn (TU Delft - Applied Sciences)
Jorge Gascon (TU Delft - Applied Sciences)
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Abstract
The dehydration of glycerol into acrolein was investigated over small‐sized γ‐Al2O3 prepared by a metal–organic framework (MOF) templated method. The particle size of alumina strongly affected the final physicochemical properties of γ‐Al2O3 as well as its catalytic activity. The MOF‐derived, small‐sized γ‐Al2O3 (M‐Al2O3) catalyst exhibited higher stability and higher activity in the glycerol dehydration reaction than conventional bulk γ‐Al2O3 and nanorod γ‐Al2O3 owing to enriched intercrystal mesopores and an abundance of accessible acid sites. M‐Al2O3 retained its high glycerol conversion (over 80 %) for nearly 200 h, whereas high acrolein selectivity (74 %) was achieved.