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Anisotropic Janus Catalysts for Spatially Controlled Chemical Reactions

Authors

  • Weipeng Lv,

    1. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
    2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
    Current affiliation:
    1. W. L. and K. J. L. contributed equally to this work.
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  • Kyung Jin Lee,

    1. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
    Current affiliation:
    1. W. L. and K. J. L. contributed equally to this work.
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  • Jinjing Li,

    1. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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  • Tae-Hong Park,

    1. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
    Current affiliation:
    1. Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute (KAERI), Daejeon, 305–353, Korea
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  • Sangyeul Hwang,

    1. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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  • A. John Hart,

    1. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
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  • Fengbao Zhang,

    1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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  • Joerg Lahann

    Corresponding author
    1. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
    2. Departments of Mechanical Engineering, Materials Science and Engineering, Macromolecular Science and Engineering and Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
    • Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
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Abstract

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Bicompartmental composite nanoparticles are prepared by electryhydrodyanimic co-jetting with an organic-soluble polymer and titanium precursor, followed by a calcination step to convert the composite particles into stable Janus catalysts. The Janus catalysts retains the original shape and bicompartmental character. Selective growth of carbon nanotubes on one side of the nanoparticles is achieved by spatially localized iron oxide nanocrystals. The product is a new type of Janus particles.

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