...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nano Energy >Nano strain induced double columnar oxide as highly active oxygen-dissociation electrode for Ni-Fe metal supported solid oxide fuel cells
【24h】

Nano strain induced double columnar oxide as highly active oxygen-dissociation electrode for Ni-Fe metal supported solid oxide fuel cells

机译：纳米应变诱导双柱状氧化物作为高效氧 - 离解的Ni-Fe金属负载的固体氧化物燃料电池

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A double columnar structure film consisting of Sm0.5Sr0.5CoO3-delta (SSC) and Sm0.2Ce0.8O3-delta (SDC) as an active cathode was prepared by pulsed laser deposition (PLD) on a thin La0.9Sr0.1Ga0.8 Mg0.2O3-delta/SDC bi-layer film, and the effects of SSC/SDC ratio in double columnar layer on cathodic performance were investigated. It was found that the cathodic overpotential as well as power density were strongly dependent on SSC-SDC ratio in double columnar layer. Almost the theoretical open circuit potential (1.10 V) and extremely high maximum power density higher than 3.0 and 0.33 W/cm(2) at 973 and 773 K respectively, were achieved on the cell using double columnar at SSC:SDC = 6:4 cathode, which is the optimized composition. Increased cathodic performance of double columnar SSC-SDC cathode were assigned to the decreased activation and the concentration overpotential. From XRD and TEM analysis, tensile strain in SDC and compressed one in SSC were observed, which could be increased diffusivity of oxide ion in SDC part. On the other hand, Sr surface segregation in SSC was prevented by the double columnar structure from low energy ion scattering (LEIS) spectroscopy and this could be related to the compressed strain in SSC part of double columnar structure resulting in the increased surface activity to oxygen dissociation.
机译：通过脉冲激光沉积（PLD）在薄LA0.9SR0.1Ga0上制备由SM0.5SR0.5COO3-DELTA（SSC）和SM0.2CE0.8O3-DELTA（SSC）和SM0.2CE0.8O3-DELTA（SDC）组成的双柱状结构膜。研究了8 Mg0.2O3-Delta / SDC双层膜，并研究了双柱层中的SSC / SDC比率在阴极性能下的影响。发现阴极超稳态以及功率密度强烈依赖于双柱层中的SSC-SDC比率。在SSC的双柱上，在电池中，在973和773 k分别在973和773k分别高于3.0和0.33W / cm（2）的理论开关电位（1.10V）和极高的最大功率密度。SSC：SDC = 6：4阴极，是优化的组合物。将双柱状SSC-SSC-SSC-SSC-SSC-SSC-SSC-SSC-SSC-SSC-SCO-SSC-SSC-SCO-SSC-SCOD阴极的增长增加到降低的活化和浓度过电位。从XRD和TEM分析中，观察到SDC中的拉伸应变并在SSC中压缩，这可以增加SDC部分中的氧化物离子的扩散性。另一方面，通过低能量离子散射（唯一）光谱法通过双柱状结构防止SSC中的SR表面偏析，这可能与双柱状结构的SSC部分中的压缩应变有关，导致氧气的表面活性增加解离。

著录项

  • 来源
    《Nano Energy》 |2019年第2019期|共9页
  • 作者

    Kang Byeong Su; Matsuda Junko; Ju Young Wan; Kim Hack Ho; Ishihara Tatsumi;

  • 作者单位

    Kyushu Univ Grad Sch Automot Sci Integrated Frontier Sci &

    Te Nishi Ku Motooka 744 Fukuoka Fukuoka 8190395 Japan;

    Kyushu Univ Int Inst Carbon Neutral Energy Res WPI I2CNER Nishi Ku Motooka 744 Fukuoka Fukuoka 8190395 Japan;

    Wonkwang Univ Dept Chem Engn Coll Engn 460 Iksan Daero Iksan Si 54538 Jeollabuk Do South Korea;

    Kyushu Univ Int Inst Carbon Neutral Energy Res WPI I2CNER Nishi Ku Motooka 744 Fukuoka Fukuoka 8190395 Japan;

    Kyushu Univ Grad Sch Automot Sci Integrated Frontier Sci &

    Te Nishi Ku Motooka 744 Fukuoka Fukuoka 8190395 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 能源与动力工程;
  • 关键词

    Cathode; Double columnar layer; Strain engineering; PLD; SOFC;

    机译：阴极;双柱层;应变工程;PLD;SOFC;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号