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首页> 外文期刊>Scripta materialia >The determination of the three-phase boundary width of solid oxide fuel cell cathodes by current-driven ~(18)O tracer incorporation
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The determination of the three-phase boundary width of solid oxide fuel cell cathodes by current-driven ~(18)O tracer incorporation

机译:电流驱动〜(18)O示踪掺入法测定固体氧化物燃料电池阴极的三相边界宽度

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摘要

For several electrode materials oxide ion incorporation into a solid electrolyte is believed to take place in a narrow zone close to the three-phase boundary (TPB). However, a determination of the width, exact location and distribution of the electrochemical activity of this incorporation zone is difficult. We discuss how far current-driven oxygen tracer experiments allow a quantification of TPB properties. The considerations are exemplified by experiments revealing the TPB width of Pt on YSZ.
机译:对于几种电极材料,认为将氧化物离子结合到固体电解质中是在靠近三相边界(TPB)的狭窄区域中发生的。但是,难以确定该结合区的宽度,电化学活性的确切位置和分布。我们讨论了电流驱动的氧气示踪剂实验可以量化TPB特性的程度。通过揭示YSZ上Pt的TPB宽度的实验来说明这些考虑。

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