A New Technique for Controllably Producing Branched or Encapsulating Nanostructures in a Vapor–Liquid–Solid Process

Authors

  • D. C. Wei,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
    2. The Graduate School, Chinese Academy of Sciences, Beijing 100064 (P.R. China)
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  • L. C. Cao,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
    2. The Graduate School, Chinese Academy of Sciences, Beijing 100064 (P.R. China)
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  • L. Fu,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
    2. The Graduate School, Chinese Academy of Sciences, Beijing 100064 (P.R. China)
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  • X. L. Li,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
    2. The Graduate School, Chinese Academy of Sciences, Beijing 100064 (P.R. China)
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  • Y. Wang,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
    2. The Graduate School, Chinese Academy of Sciences, Beijing 100064 (P.R. China)
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  • G. Yu,

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
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  • Y. Q. Liu

    1. Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080 (P.R. China)
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  • This work was supported by the Major State Basic Research Development Program, the National Natural Science Foundation of China (90206049, 20472089, 20421101, 20573115), and the Chinese Academy of Sciences. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

Branched or encapsulating nanostructures with controlled architectures are produced using flow fluctuation in a vapor–liquid–solid process. The flow fluctuation induces catalyst coalescence or division (see figure). The technique is illustrated by the synthesis of iron-encapsulating carbon nanotubes with controlled encapsulating position, allowing modulation of the magnetic properties.

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