1. Hollow Beta Zeolite Single Crystals for the Design of Selective Catalysts.
- Author
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Morgado Prates, Ana Rita, Pagis, Céline, Meunier, Frederic C., Burel, Laurence, Epicier, Thierry, Roiban, Lucian, Koneti, Siddhardha, Bats, Nicolas, Farrusseng, David, and Tuel, Alain
- Subjects
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ZEOLITES , *SINGLE crystals , *SELECTIVE catalytic oxidation , *METAL nanoparticles , *ENCAPSULATION (Catalysis) , *RECRYSTALLIZATION (Metallurgy) - Abstract
We present a Pt@Beta catalyst with a unique, well-controlled location of metal nanoparticles that allows more efficient use of this rare, expensive metal in catalysis. The zeolite crystal has an inner cavity, leaving a thin zeolite shell where the metal nanoparticles are encapsulated, thereby ensuring a relatively small diffusional path length and high selectivity. Hollow Beta is obtained by a controlled dissolution–recrystallization method. The location of the particles not only was revealed by electron tomography 3D reconstruction but was further confirmed by a model hydrogenation reaction of aromatics. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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