Thermosensitive Au-PNIPA Yolk-Shell Nanoparticles with Tunable Selectivity for Catalysis

Selectivity in nanoreactors: A hybrid yolk–shell nanostructure that contains gold nanoparticles in the core and thermosensitive microgel poly(N‐isopropylacrylamide) (PNIPA) as shell is presented. The catalytic selectivity of Au‐PNIPA nanoparticles for the reduction of hydrophilic 4‐nitrophenol and m...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2012-02, Vol.51 (9), p.2229-2233
Main Authors: Wu, Shuang, Dzubiella, Joachim, Kaiser, Julian, Drechsler, Markus, Guo, Xuhong, Ballauff, Matthias, Lu, Yan
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Gold
metal nanoparticles
Microgels
nanoparticle catalysis
Nanoparticles
Nanostructure
Nitrobenzenes
Selectivity
Thermosensitive
thermosensitive microgels
yolk-shell structures
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Summary:Selectivity in nanoreactors: A hybrid yolk–shell nanostructure that contains gold nanoparticles in the core and thermosensitive microgel poly(N‐isopropylacrylamide) (PNIPA) as shell is presented. The catalytic selectivity of Au‐PNIPA nanoparticles for the reduction of hydrophilic 4‐nitrophenol and more hydrophobic nitrobenzene with NaBH4 can be tuned through the volume transition of PNIPA shell (see picture).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201106515