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首页> 外文期刊>Journal of power sources >Thin film nanocrystalline Ba_(0.5)Sr_(0.5)CO_(0.8)Fe_(0.2)O_3: Synthesis, conductivity, and micro-solid oxide fuel cells
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Thin film nanocrystalline Ba_(0.5)Sr_(0.5)CO_(0.8)Fe_(0.2)O_3: Synthesis, conductivity, and micro-solid oxide fuel cells

机译：薄膜纳米晶Ba_（0.5）Sr_（0.5）CO_（0.8）Fe_（0.2）O_3：合成，电导率和微固体氧化物燃料电池

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摘要

We report on single phase polycrystalline Bao.5Sro.5Coo.8Feo.2O3 thin films grown on (100) (Y_20_3)_(0.08)(ZrO_2)_(0.92) substrates by radio frequency sputtering. Detailed studies on electrical conductivity as a function of temperature up to 500 ℃ are carried out for films in the 20-100 nm thickness range. Free-standing thin film micro-solid oxide fuel cells utilizing nanostructured Ba_(0.5)Sr_(0.5)CO_(0.8)Fe_(0.2)O_3 cathodes are fabricated and tested for the first time. A maximum power density of 35 mW cm~(-2) at 520 ℃ was obtained with Ba_(0.5)Sr_(0.5)CO_(0.8)Fe_(0.2)O_3/(Y_2O_3)_(0.08)(ZrO_2)_(0.92)/Pt micro-solid oxide fuel cells. These results indicate the significance of microstructure on electrical properties of Ba_(0.5)Sr_(0.5)CO_(0.8)Fe_(0.2)O_3 and present the first successful thin film micro-solid oxide fuel cells integrating Bao.5Sro.5Coo.8Feo.2O3. We anticipate these results to be of relevance in advancing micro-solid oxide fuel cells for reduced temperature operation with dense oxide cathodes.
机译：我们报道了通过射频溅射在（100）（Y_20_3）_（0.08）（ZrO_2）_（0.92）衬底上生长的单相多晶Bao.5Sro.5Coo.8Feo.2O3薄膜。对于厚度为20-100 nm的薄膜，进行了电导率随温度变化（最高500℃）的详细研究。首次制造并测试了利用纳米结构Ba_（0.5）Sr_（0.5）CO_（0.8）Fe_（0.2）O_3阴极的自立式薄膜微固体氧化物燃料电池。 Ba_（0.5）Sr_（0.5）CO_（0.8）Fe_（0.2）O_3 /（Y_2O_3）_（0.08）（ZrO_2）_（0.92）在520℃获得的最大功率密度为35 mW cm〜（-2） / Pt微固体氧化物燃料电池。这些结果表明了微结构对Ba_（0.5）Sr_（0.5）CO_（0.8）Fe_（0.2）O_3的电性能的重要性，并提出了首个成功的集成了Bao.5Sro.5Coo.8Feo的薄膜微固体氧化物燃料电池。 2O3。我们预计这些结果与推进微固体氧化物燃料电池以降低致密氧化物阴极的低温运行有关。

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  • 来源
    《Journal of power sources》 |2011年第15期|p.6214-6218|共5页
  • 作者

    Kian Kerman; Bo-Kuai Lai; Shriram Ramanathan;

  • 作者单位

    Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA;

    Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA;

    Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA;

  • 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

    micro-solid oxide fuel cell; bscf; nanocrystalline; conductivity; thin films;

    机译：微固体氧化物燃料电池;bscf;纳米晶电导率薄膜;

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