Zeolite-Encapsulated Pt Nanoparticles for Tandem Catalysis

Substrate size-selective catalysis with zeolite-encapsulated gold nanoparticles.

Over the years, many strategies have been developed to address the problem of sintering of nanoparticle catalysts, including encapsulating metal nanoparticles in protective shells, and trapping nanoparticles in the cavities of certain zeolites in post-synthesis steps. In general, materials that contain metal nanoparticles that are only accessible via zeolite micropores are intriguing, specifica...

Homogeneous Hydrogenation Catalysis with Monodisperse, Dendrimer-Encapsulated Pd and Pt Nanoparticles**

In this report we show that composite materials that consist of noble metal nanoparticles stabilized within dendrimer interiors are suitable for use as homogeneous hydrogenation catalysts. These interesting new materials are prepared by sorbing PdII or PtII ions into hydroxyl-terminated poly(amidoamine) (PAMAM) dendrimers (Gn-OH, where Gn represents the nth generation) where they complex with i...

Zeolite Catalysis

The Special Issue “Zeolite Catalysis” published in the online journal Catalysts was recently successfully completed. A good number of peer-reviewed publications were published reflecting the broadness of the zeolite syntheses, characterizations and various application fields. This issue brought together recent research of well-known research teams from all over the world. The term “zeolite” is ...

Mechanistic Model for Hydrogen Activation, Spillover, and Its Chemical Reaction in Zeolite-Encapsulated Pt Catalyst

Dendrimer-encapsulated metal nanoparticles: synthesis, characterization, and applications to catalysis.

This Account reports the synthesis and characterization of dendrimer-encapsulated metal nanoparticles and their applications to catalysis. These materials are prepared by sequestering metal ions within dendrimers followed by chemical reduction to yield the corresponding zerovalent metal nanoparticle. The size of such particles depends on the number of metal ions initially loaded into the dendri...