Pd Nanoparticles in Dendrimers Immobilized on Silica–Polyamine Composites as Catalysts for Selective Hydrogenation

Pd Nanoparticles in Dendrimers Immobilized on Silica–Polyamine Composites as Catalysts for Selective Hydrogenation

New heterogeneous hydrogenation catalysts, based on Pd nanoparticles and polypropyleneimine (PPI) dendrimers of the third generation that have been covalently grafted to a silica surface modified with polyallylamine (PAA) have been synthesized. The final products were characterized by TEM, XPS, and...

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Veröffentlicht in:ACS applied materials & interfaces 2014-06, Vol.6 (11), p.8807-8816
Hauptverfasser: Karakhanov, Edward, Maximov, Anton, Kardasheva, Yulia, Semernina, Vera, Zolotukhina, Anna, Ivanov, Andrey, Abbott, Geoffrey, Rosenberg, Edward, Vinokurov, Vladimir
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container_end_page 8816
container_issue 11
container_start_page 8807
container_title ACS applied materials & interfaces
container_volume 6
creator Karakhanov, Edward
Maximov, Anton
Kardasheva, Yulia
Semernina, Vera
Zolotukhina, Anna
Ivanov, Andrey
Abbott, Geoffrey
Rosenberg, Edward
Vinokurov, Vladimir
description New heterogeneous hydrogenation catalysts, based on Pd nanoparticles and polypropyleneimine (PPI) dendrimers of the third generation that have been covalently grafted to a silica surface modified with polyallylamine (PAA) have been synthesized. The final products were characterized by TEM, XPS, and solid-state NMR spectroscopy. The synthesized materials are effective catalysts for selective hydrogenation of dienes to monoenes and phenyl acetylene to styrene at very high substrate/Pd ratios with turnover rates higher than related Pd nanoparticle catalysts. The synthesized catalysts can be reused without any loss of activity in the case of styrene and isoprene.
doi_str_mv 10.1021/am501528a
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title Pd Nanoparticles in Dendrimers Immobilized on Silica–Polyamine Composites as Catalysts for Selective Hydrogenation
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