Search results for "PAMAM dendrimers"

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Single-Walled Carbon Nanotube–Polyamidoamine Dendrimer Hybrids for Heterogeneous Catalysis

2016

We report the synthesis and catalytic properties of single-walled carbon nanotube-polyamidoamine dendrimers hybrids (SWCNT-PAMAM), prepared via a convergent strategy. The direct reaction of cystamine-based PAMAM dendrimers (generations 2.5 and 3.0) with pristine SWCNTs in refluxing toluene, followed by immobilization and reduction of [PdCl4](2-), led to the formation of highly dispersed small palladium nanoparticles homogeneously confined throughout the nanotube length. One of these functional materials proved to be an efficient catalyst in Suzuki and Heck reactions, able to promote the above processes down to 0.002 mol % showing a turnover number (TON) of 48 000 and a turnover frequency (T…

Nanotubepalladium nanoparticleMaterials scienceGeneral Physics and AstronomyC-C cross coupling; carbon nanotubes; heterogeneous catalysis; palladium nanoparticles; PAMAM dendrimers; TEM; Materials Science (all); Engineering (all); Physics and Astronomy (all)02 engineering and technologyCarbon nanotubePAMAM dendrimers010402 general chemistryHeterogeneous catalysis01 natural sciencesCatalysislaw.inventionPhysics and Astronomy (all)Engineering (all)Suzuki reactionlawDendrimerOrganic chemistrypalladium nanoparticlesGeneral Materials ScienceC-C cross couplingcarbon nanotubePAMAM dendrimercarbon nanotubesGeneral EngineeringSettore CHIM/06 - Chimica Organica021001 nanoscience & nanotechnology0104 chemical sciencesTurnover numberheterogeneous catalysisChemical engineeringTEMheterogeneous catalysiMaterials Science (all)0210 nano-technologyHybrid materialACS Nano
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