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  • Film formation from plasma-enabled surface-catalyzed dehalogenative coupling of a small organic molecule

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    Author(s)
    Hartl, Hugo
    Guo, Yanru
    Ostrikov, Ken
    Xian, Yubin
    Zheng, Jie
    Li, Xingguo
    Fairfull-Smith, Kathryn E
    MacLeod, Jennifer
    Griffith University Author(s)
    Ostrikov, Ken
    Year published
    2019
    Metadata
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    Abstract
    This work demonstrates a new pathway to the direct on-surface fabrication of surface coatings by showing that application of a plasma can lead to dehalogenative coupling of small aromatic molecules at a catalytic surface. Specifically, we show that a room temperature, atmospheric pressure plasma can be used to fabricate a coating through a surface-confined dehalogenation reaction. Plasma treatments were performed using a dielectric barrier discharge (DBD) technique under pure nitrogen with a variety of power levels and durations. Samples were analysed by optical and helium ion microscopy (HIM), X-ray photoelectron spectroscopy ...
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    This work demonstrates a new pathway to the direct on-surface fabrication of surface coatings by showing that application of a plasma can lead to dehalogenative coupling of small aromatic molecules at a catalytic surface. Specifically, we show that a room temperature, atmospheric pressure plasma can be used to fabricate a coating through a surface-confined dehalogenation reaction. Plasma treatments were performed using a dielectric barrier discharge (DBD) technique under pure nitrogen with a variety of power levels and durations. Samples were analysed by optical and helium ion microscopy (HIM), X-ray photoelectron spectroscopy (XPS), optical profilometry, and contact angle measurement. By varying the plasma parameters we could control the chemistry, morphology and roughness of the film. Surface wettability also varied with the plasma parameters, with high-dose plasmas leading to a hydrophobic surface with water contact angles up to 130°.
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    Journal Title
    RSC Advances
    Volume
    9
    Issue
    5
    DOI
    https://doi.org/10.1039/c8ra08920e
    Copyright Statement
    © The Author(s) 2019. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) License, which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Chemical sciences
    Science & Technology
    Physical Sciences
    Chemistry, Multidisciplinary
    Chemistry
    POLYMERIZATION
    Publication URI
    http://hdl.handle.net/10072/388408
    Collection
    • Journal articles

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