Nanoparticle–Loaded Aerogels and Layered Aerogels Cast from Sol–Gel Mixtures

Authors

  • Jiwon Kim,

    1. Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
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  • Hideyuki Nakanishi,

    1. Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
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  • Johannes Pollanen,

    1. Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
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  • Stoyan Smoukov,

    1. Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
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  • William P. Halperin,

    1. Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
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  • Bartosz A. Grzybowski

    Corresponding author
    1. Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA
    • Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Rd., Evanston, IL 60208, USA.
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Abstract

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Metal nanoparticles (Au, Ag, or Pd) functionalized with hydroxy-terminated alkane thiols can be dispersed in sol–gel mixtures to give alcogels and, after supercritical drying, aerogels containing up to 90 wt% of nanoparticles. Layered or patterned nanoparticle/aerogel monoliths can be prepared by sequential casting or molding of the sol–gels.

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