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    Electrodeposited Metal Organic Framework toward Excellent Hydrogen Sensing in an Ionic Liquid

    79933.pdf (1.603Mb)
    Access Status
    Open access
    Authors
    Azhar, Muhammad Rizwan
    Hussain, Ghulam
    Tade, Moses O
    Silvester-Dean, Debbie
    Wang, Shaobin
    Date
    2020
    Type
    Journal Article
    
    Metadata
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    Citation
    Azhar, M.R. and Hussain, G. and Tade, M.O. and Silvester, D.S. and Wang, S. 2020. Electrodeposited Metal Organic Framework toward Excellent Hydrogen Sensing in an Ionic Liquid. ACS Applied Nano Materials. 3 (5): pp. 4376-4385.
    Source Title
    ACS Applied Nano Materials
    DOI
    10.1021/acsanm.0c00503
    ISSN
    2574-0970
    Faculty
    Faculty of Science and Engineering
    School
    School of Molecular and Life Sciences (MLS)
    WASM: Minerals, Energy and Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/FT170100315
    http://purl.org/au-research/grants/arc/DP170104264
    Remarks

    This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Nano Materials, copyright © American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsanm.0c00503.

    URI
    http://hdl.handle.net/20.500.11937/79831
    Collection
    • Curtin Research Publications
    Abstract

    The synthesis of thin films of metal organic frameworks (MOFs) is a rapidly growing area owing to the use of these highly functional nanomaterials for various applications. In this study, a thin layer of a typical MOF, copper benzene tricarboxylate (HKUST–1), was synthesized by electrodeposition on a glassy carbon (GC) electrode using a potential-step chronoamperometric technique at room temperature. Various characterization techniques including Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) were used to verify the successful deposition of the MOF film and its structure. The electrodeposited MOF crystals showed cuboctahedral morphology with macropores. The MOF modified electrode was applied for hydrogen gas sensing in a room-temperature ionic liquid (RTIL) for the first time. A 4-fold increase in current was observed compared to a precious metal, that is, platinum, and the electrode exhibited a significant catalytic activity compared to the bare GC electrode, making it a very promising low cost material for hydrogen gas sensing.

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