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    Nickel-Iron Alloy Nanoparticle-Decorated K2NiF4-Type Oxide as an Efficient and Sulfur-Tolerant Anode for Solid Oxide Fuel Cells

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    Fulltext not available
    Authors
    Wu, N.
    Wang, W.
    Zhong, Y.
    Yang, G.
    Qu, J.
    Shao, Zongping
    Date
    2017
    Collection
    • Curtin Research Publications
    Type
    Journal Article
    Metadata
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    Abstract

    We report a new nickel-iron alloy nanoparticle-decorated LaSrFe0.75Ni0.25O4 K2NiF4-type oxide with Ruddlesden-Popper structure (RP-LSFN), which performed as a high-performance sulfur-resistant anode prepared by using an infiltration method for solid oxide fuel cells (SOFCs) with LaSrFeNiO6-d double perovskite (DP-LSFN) as the precursor. A reduction converts the DP-LSFN phase into mixed phases containing the RP-LSFN and FeNi3 nanoparticles. The morphology, thermal expansion behavior, sulfur tolerance, and electrochemical activity for hydrogen oxidation of this FeNi3 nanoparticle-decorated, RP-LSFN-infiltrated anode are investigated. An electrolyte-supported SOFC with this infiltrated anode generates a high power output of 541mWcm-2 at 800°C operated with 1000ppm H2S-H2 as the fuel, which compares favorably to that with pure H2 fuel. A single cell with this anode demonstrates favorable stability at 800°C during 90, 40, and 20h operation with H2 containing 100, 200, and 1000ppm H2S, respectively.

    Citation
    Wu, N. and Wang, W. and Zhong, Y. and Yang, G. and Qu, J. and Shao, Z. 2017. Nickel-Iron Alloy Nanoparticle-Decorated K2NiF4-Type Oxide as an Efficient and Sulfur-Tolerant Anode for Solid Oxide Fuel Cells. ChemElectroChem. 4 (9): pp. 2378-2384.
    Source Title
    ChemElectroChem
    URI
    http://hdl.handle.net/20.500.11937/54279
    DOI
    10.1002/celc.201700211
    Department
    Department of Chemical Engineering

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