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    Melamine formaldehyde-metal organic gel interpenetrating polymer network derived intrinsic Fe-N-doped porous graphitic carbon electrocatalysts for oxygen reduction reaction

    73999.pdf (2.605Mb)
    Access Status
    Open access
    Authors
    Shijina, K.
    Illathvalappil, R.
    Sumitha, N.
    Sailaja, G.
    Kurungot, S.
    Nair, Balagopal
    Peer Mohamed, A.
    Anilkumar, G.
    Yamaguchi, T.
    Hareesh, U.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Shijina, K. and Illathvalappil, R. and Sumitha, N. and Sailaja, G. and Kurungot, S. and Nair, B. and Peer Mohamed, A. et al. 2018. Melamine formaldehyde-metal organic gel interpenetrating polymer network derived intrinsic Fe-N-doped porous graphitic carbon electrocatalysts for oxygen reduction reaction. New Journal of Chemistry. 42 (23): pp. 18690-18701.
    Source Title
    New Journal of Chemistry
    DOI
    10.1039/c8nj03170c
    ISSN
    1144-0546
    School
    Nanochemistry Research Institute
    URI
    http://hdl.handle.net/20.500.11937/73714
    Collection
    • Curtin Research Publications
    Abstract

    Fe, N doped porous graphitic carbon electrocatalyst (Fe-MOG-MF-C), obtained by pyrolysis of an Interpenetrating Polymer Network (IPN) comprised of melamine formaldehyde (MF as hard segment) and Metal-Organic Gel (MOG as soft segment), exhibited significant Oxygen Reduction Reaction (ORR) activity in alkaline medium. BET surface area analysis of Fe-MOG-MF-C showed high surface area (821 m2 g-1), while TEM, Raman and XPS results confirmed Fe and N co-doping. Furthermore, a modulated porous morphology with a higher degree of surface area (950 m2 g-1) has been accomplished for the system (Fe-MOG-MFN-C) when aided by a sublimable porogen, such as naphthalene. XPS results further demonstrated that these systems exhibited a better degree of distribution of graphitic N and an onset potential value of 0.91 V vs. RHE in 0.1 M KOH solution following an efficient four-electron ORR pathway. The electrocatalytic activity of Fe-MOG-MFN-C is superior to that of Fe-MOG-MF-C by virtue of its higher graphitic N content and surface area. Thus, the study presents a new class of IPN derived MF-MOG nanocomposites with the potential to generate extended versions of in situ Fe-N doped porous graphitic carbon structures with superior ORR activity.

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