Abstract
The selective oxidation of CO over C3H6 is achieved in yolk-shell Pt@Silicalite-1 catalysts in which Pt nanoparticles are encapsulated in hollow silicalite-1 single crystals. The thin shell operate...
Highlights
Catalytic selectivity arises from the fastest diffusion of KEYWORDS: heterogeneous catalysis, Pt nanoparticle, hollow zeolite, selective CO oxidation, poison resistance, diffusion
Kapteijn et al described a H-ZSM-5-coated Co/SiO2 catalyst capable of producing a certain range of hydrocarbons in Fischer−Tropsch synthesis.[15−17] Nishiyama et al showed transport-driven selective hydrogenation on a mixture of linear asinlidcalbitrea-n1chpeodlycCry6staalllkineenelsayoern.18P,1t9/TIniOa2ll beads coated with previous studies, a macroscopic layer is coated on metal/SiO2 grains, and the activity is given by the metal particles underneath the membrane
We have reported the synthesis of yolk−shell materials which consist of metal nanoparticles (Au, Pt) encapsulated in hollow crack-free silicalite-1 single crystals with a wall thickness of about 20 nm
Summary
Catalytic selectivity arises from the fastest diffusion of KEYWORDS: heterogeneous catalysis, Pt nanoparticle, hollow zeolite, selective CO oxidation, poison resistance, diffusion. The concept of controlling the selectivity of metal catalysts by a shell of zeolite membrane was reported. We have reported the synthesis of yolk−shell materials which consist of metal nanoparticles (Au, Pt) encapsulated in hollow crack-free silicalite-1 single crystals with a wall thickness of about 20 nm.
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