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    Fe-N-C electrocatalysts for oxygen reduction reaction synthesized by using aniline salt and Fe3+/H2O2 catalytic system

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    Type
    Article
    Authors
    Bukola, Saheed
    Merzougui, Belabbes A.
    Akinpelu, Akeem
    Laoui, Tahar
    Hedhili, Mohamed N. cc
    Swain, Greg M.
    Shao, Minhua
    KAUST Department
    Imaging and Characterization Core Lab
    KAUST Solar Center (KSC)
    Core Labs
    Date
    2014-11
    Permanent link to this record
    http://hdl.handle.net/10754/563825
    
    Metadata
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    Abstract
    Non-precious metal (NPM) catalysts are synthesized by polymerizing aniline salt using an aqueous Fe3+/H2O2 coupled catalytic system on a carbon matrix with a porous creating agent. The sulfur containing compunds such as ammonium peroxydisulfate, are eliminated in this method resulting in a much simpler process. The catalysts' porous structures are enhanced with ammonium carbonate as a sacrificial material that yields voids when decomposed during the heat treatment at 900 °C in N2 atmosphere. Two catalysts Fe-N-C/Vu and Fe-N-C/KB (Vu = Vulcan and KB = Ketjen black) were synthesized and characterized. Their oxygen reduction reaction (ORR) activities were investigated using a rotating ring-disk electrode (RRDE) in both 0.1 M KOH and 0.1 M HClO4. The catalysts show improved ORR activities close to that of Pt-based catalysts, low H2O2 formation and also demonstrated a remarkable tolerance towards methanol oxidation.
    Citation
    Bukola, S., Merzougui, B., Akinpelu, A., Laoui, T., Hedhili, M. N., Swain, G. M., & Shao, M. (2014). Fe-N-C Electrocatalysts for Oxygen Reduction Reaction Synthesized by Using Aniline Salt and Fe 3+ /H 2 O 2 Catalytic System. Electrochimica Acta, 146, 809–818. doi:10.1016/j.electacta.2014.08.152
    Sponsors
    The authors acknowledge the financial support provided by KACST, through the Science & Technology Unit at KFUPM for funding this work through project No. 10-ENE-1375-04 as part of the National Science, Technology and Innovation Plan (NSTIP). M.S. acknowledges a startup fund from the Hong Kong University of Science and Technology.
    Publisher
    Elsevier BV
    Journal
    Electrochimica Acta
    DOI
    10.1016/j.electacta.2014.08.152
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.electacta.2014.08.152
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; KAUST Solar Center (KSC)

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