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    Carbon-based nanomaterial synthesis using nanosecond electrical discharges in immiscible layered liquids: $\textit{n}$-heptane and water

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    Name:
    Hamdan+et+al_2018_J._Phys._D%3A_Appl._Phys._10.1088_1361-6463_aac46f.pdf
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    1.369Mb
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    Type
    Article
    Authors
    Hamdan, Ahmad cc
    Cha, Min Suk cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    BAS/1/1384-01-01
    Date
    2018-05-24
    Online Publication Date
    2018-05-24
    Print Publication Date
    2018-06-20
    Permanent link to this record
    http://hdl.handle.net/10754/627928
    
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    Abstract
    Plasmas in- or in-contact with liquids have been extensively investigated due to their high potential for a wide range of applications including but not limited to, water treatment, material synthesis and functionalization, bio-medical applications, and liquid fuel reformation. Recently, we successfully developed a discharge using two immiscible liquids, having very different electrical permittivities, which could significantly intensify the electric field intensity. Here, we establish nanosecond discharges at the interface n-heptane-water (with respective relative dielectric permittivities of 2 and 80) to enable the synthesis of carbon-based nanomaterials. A characterization of the as-synthesized material and the annealed (500 °C) material, using various techniques (Fourier-Transform, Infra-Red, Scanning and Transmission electron microscopes, etc.), shows that the as-synthesized material is a mixture of two carbon-based phases: a crystalline phase (graphite like) embedded into a phase of hydrogenated amorphous carbon. The existence of two-phases may be explained by the non-homogeneity of the discharge that induces various chemical reactions in the plasma channel.
    Citation
    Hamdan A, Cha MS (2018) Carbon-based nanomaterial synthesis using nanosecond electrical discharges in immiscible layered liquids: n-heptane and water. Journal of Physics D: Applied Physics. Available: http://dx.doi.org/10.1088/1361-6463/aac46f.
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST), under award number BAS/1/1384-01-01
    Publisher
    IOP Publishing
    Journal
    Journal of Physics D: Applied Physics
    DOI
    10.1088/1361-6463/aac46f
    Additional Links
    http://iopscience.iop.org/article/10.1088/1361-6463/aac46f
    ae974a485f413a2113503eed53cd6c53
    10.1088/1361-6463/aac46f
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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