Surface chemistry evolution in LnBaCo2O5 + δ double perovskites for oxygen electrodes

Helena Téllez, John Druce, Young Wan Ju, John Kilner, Tatsumi Ishihara

    研究成果: ジャーナルへの寄稿学術誌査読

    51 被引用数 (Scopus)

    抄録

    The electro-catalytically active surfaces of mixed ionic electronic conductors (MIECs) are critically important for the operation of electrochemical devices such as solid oxide electrolyser cells (SOECs) and fuel cells (SOFCs). However, the composition and morphology of surfaces of real samples are often poorly characterized, and thus our understanding of the influence of these factors on the surface exchange reactions is rudimentary. In this work, we apply low energy ion scattering (LEIS) spectrometry and atomic force microscopy (AFM) to investigate the evolution of the surface composition and morphology of two layered perovskite type materials, showing the dynamic nature of these surfaces even at room temperature.

    本文言語英語
    ページ(範囲)20856-20863
    ページ数8
    ジャーナルInternational Journal of Hydrogen Energy
    39
    35
    DOI
    出版ステータス出版済み - 12月 3 2014

    !!!All Science Journal Classification (ASJC) codes

    • 再生可能エネルギー、持続可能性、環境
    • 燃料技術
    • 凝縮系物理学
    • エネルギー工学および電力技術

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