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Issue 25, 2018
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Nanoparticle synthesis via bubbling vapor precursors in bulk liquids

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Abstract

Conventional methods for preparing polymer nanoparticles and organic–inorganic composite nanoparticles use solution based top-down processes with surfactants and mechanical stirring. Examples of such processes include emulsion polymerization of monomers to produce polymer nanoparticles and sol–gel reactions involving hydrolysis of inorganic precursors to produce inorganic materials (such as silica and titanium nanoparticles). Here, we show that vaporized precursors of various compounds can be used as reactants to produce polymer, inorganic, and composite nanoparticles. The bubbling action of precursor vapor in a reactant vessel provides a constant supply of precursor species while aiding their rapid mixing in the bulk solution liquid. The vaporization and bubbling processes require only small amounts of energy to prepare nanoparticles or core–shell nanoparticles without forming unwanted side products. Compared to other available techniques, this approach enables precise control of nanoparticle size and shell thickness as functions of vapor supply time and temperature without surfactants. Our approach can potentially be applied to fabricate functional nanomaterials using organic and inorganic precursors for medical, electrical, optical, magnetic and/or catalytic applications.

Graphical abstract: Nanoparticle synthesis via bubbling vapor precursors in bulk liquids

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Publication details

The article was received on 06 Mar 2018, accepted on 23 May 2018 and first published on 25 May 2018


Article type: Paper
DOI: 10.1039/C8NR01903G
Citation: Nanoscale, 2018,10, 12196-12203
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    Nanoparticle synthesis via bubbling vapor precursors in bulk liquids

    D. J. Kang and S. Anand, Nanoscale, 2018, 10, 12196
    DOI: 10.1039/C8NR01903G

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