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In situ X-ray spectromicroscopy study of bipolar plate material stability for nano-fuel-cells with ionic-liquid electrolyte

机译:含离子液体电解质的纳米燃料电池双极板材料稳定性的原位X射线光谱研究

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摘要

This paper reports a pioneering application of soft X-ray imaging and spectromicroscopy to a hot material stability issue in fuel-cell (FC) technology: the corrosion of metallic bipolar plates in ionic-liquid-based nano polymer electrolyte membrane (PEM) FCs. Using the potential of the X-ray scanning microscopy for in situ characterisation of complex multi-material systems in electrochemical environments with sub-micrometer lateral resolution, we study the electrochemical behaviour of Fe electrodes in contact with the room-temperature ionic liquid (RTIL)l-butyl-l-methyl-pyrrolidinium bis (trifluoromethylsulfo-nyl) amide ([BMP][TFSA|) in a nano fuel-cell fabricated by lithography. Thanks to the properties of this RTIL, an open electrochemical cell could be used in vacuum (10~(-6) mbar). The possibility of imaging elec-trochemically induced morphological features in conjunction with local spectroscopic analysis, yields details of the space distribution and chemical correlations of the corrosion products.
机译:本文报道了软X射线成像和光谱显微镜技术在燃料电池(FC)技术中热材料稳定性问题上的开拓性应用:离子液体基纳米聚合物电解质膜(PEM)FC中金属双极板的腐蚀。利用X射线扫描显微镜在电化学环境中以亚微米横向分辨率原位表征复杂多材料系统的潜力,我们研究了与室温离子液体(RTIL)接触的Fe电极的电化学行为通过光刻法制备的纳米燃料电池中的1-丁基-1-甲基-吡咯烷鎓双(三氟甲基磺酰基)酰胺([BMP] [TFSA |))。由于该RTIL的特性,可以在真空(10〜(-6)mbar)中使用开放式电化学电池。结合局部光谱分析对电化学诱导的形态特征进行成像的可能性,可以得出腐蚀产物的空间分布和化学相关性的详细信息。

著录项

  • 来源
    《Microelectronic Engineering》 |2011年第8期|p.2456-2458|共3页
  • 作者单位

    Dipartimento di Ingegneria dell'lnnovazione, Universita del Salento, via Monteroni, 73100 Lecce, Italy;

    Dipartimento di Ingegneria dell'lnnovazione, Universita del Salento, via Monteroni, 73100 Lecce, Italy;

    Elettra-Sinctrotrone Trieste SCpA SS. 14. Km 163.5, Area Science Park. 34149 Basovizza (TS), Italy;

    Elettra-Sinctrotrone Trieste SCpA SS. 14. Km 163.5, Area Science Park. 34149 Basovizza (TS), Italy;

    Elettra-Sinctrotrone Trieste SCpA SS. 14. Km 163.5, Area Science Park. 34149 Basovizza (TS), Italy;

    CNR - 10M. SS. 14, Km 163.5. Area Science Park, 34149 Basovizza (TS), Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    stxm; xrf; fuel cell; ionic liquid; corrosion;

    机译:stxm;xrf;燃料电池;离子液体;腐蚀;

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