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

Authors

  • Shuang Wu,

    1. State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237 Shanghai (China)
    2. F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
    3. Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin (Germany)
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  • Prof. Joachim Dzubiella,

    1. F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
    2. Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin (Germany)
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  • Julian Kaiser,

    1. F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
    2. Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin (Germany)
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  • Dr. Markus Drechsler,

    1. Makromolekulare Chemie II, University of Bayreuth, 95440 Bayreuth (Germany)
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  • Prof. Xuhong Guo,

    1. State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237 Shanghai (China)
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  • Prof. Matthias Ballauff,

    1. F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
    2. Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin (Germany)
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  • Dr. Yan Lu

    Corresponding author
    1. F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
    2. Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin (Germany)
    • F-I2 Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin (Germany)
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  • The authors thank the Deutsche Forschungsgemeinschaft, Schwerpunktprogramm “Hydrogele” (SPP1259) and the 111 Project Grant B08021 for financial support.

Abstract

original image

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).

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