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    Improving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles

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    ECS Trans.-2013-Boulfrad-1211-6.pdf
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    Description:
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    Type
    Article
    Authors
    Boulfrad, Samir
    Cassidy, M.
    Traversa, Enrico cc
    Irvine, J. T. S.
    KAUST Department
    Material Science and Engineering Program
    Materials for Energy Conversion and Storage (MECS) Lab
    Physical Science and Engineering (PSE) Division
    Date
    2013-10-07
    Online Publication Date
    2013-10-07
    Print Publication Date
    2013-10-06
    Permanent link to this record
    http://hdl.handle.net/10754/555790
    
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    Abstract
    In this work (La0.75Sr0.25)0.97Cr0.5Mn0.5O3 (LSCM) perovskite powders were pre-coated with 5 wt% nickel and mixed with different amounts of CGO for testing as anode materials under 3% wet H2. By using scanning transmission electron microscopy (STEM) with X-ray energy dispersive spectroscopy (EDS), we demonstrated that Ni forms a solid solution in the perovkite phase under oxidizing atmosphere and exsolves in form of nanoparticles under reducing atmospheres. The presence of the catalyst nanoparticles led to a decrease in the anodic activation energy by half and thus the polarization resistance was dropped by 60% at 800¢ªC. The effect of CGO amount will be also discussed.
    Citation
    Improving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles 2013, 57 (1):1211 ECS Transactions
    Publisher
    The Electrochemical Society
    Journal
    ECS Transactions
    DOI
    10.1149/05701.1211ecst
    Additional Links
    http://ecst.ecsdl.org/cgi/doi/10.1149/05701.1211ecst
    ae974a485f413a2113503eed53cd6c53
    10.1149/05701.1211ecst
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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