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首页> 外文期刊>International journal of hydrogen energy >Improved power generation performance of solid oxide fuel cells using doped LaGaO_3 electrolyte films prepared by screen printing method II. Optimization of Ni-Ge_(0.8)Sm_(0.2)O_(1.9)cermet anode support
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Improved power generation performance of solid oxide fuel cells using doped LaGaO_3 electrolyte films prepared by screen printing method II. Optimization of Ni-Ge_(0.8)Sm_(0.2)O_(1.9)cermet anode support

机译：使用通过丝网印刷方法II制备的掺杂LaGaO_3电解质膜提高了固体氧化物燃料电池的发电性能。 Ni-Ge_（0.8）Sm_（0.2）O_（1.9）金属陶瓷阳极载体的优化

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摘要

A Ni and Sm-doped ceria (Ge_(0.8)Sm_(0.2)O_(1.9), SDC) cermet anode as a porous support of doped LaGaO_3 film prepared by a wet coating and co-firing process was investigated. Different preparation methods and compositions were used to improve the power density of intermediate temperature solid oxide fuel cells. NiO-SDC precursor powder with fine particles and a porous microstructure with high surface area was synthesized by a modified impregnation method and compared with that synthesized by a ball milling method. In addition, an open circuit voltage, which is almost equal to the theoretical value of 1.1 V, and maximum power densities of 835, 277, and 67 mW cm ~2 at 700, 600, and 500 ℃, respectively, were achieved on a single cell supported by a 75 wt% Ni-SDC cermet anode when a 60 nm thick Sr- and Mg-doped lanthanum gallate (LSGM) electrolyte was used. The improved power density was explained by the enlarged reaction area for the anode as a result of the low polarization resistance of the anode by high porosity and uniform distribution of Ni and SDC particles. Although a small amount of Ni diffused to the interface between the La-doped ceria (LDC) buffer layer and the LSGM electrolyte film, an adverse reaction that deteriorates cell performance seemed to be suppressed, and thus, reasonably high power density was achieved on the cell using the LSGM film prepared by the screen printing method with optimization of the anode substrate structure and composition.
机译：研究了Ni和Sm掺杂的二氧化铈（Ge_（0.8）Sm_（0.2）O_（1.9），SDC）金属陶瓷阳极，作为通过湿法涂覆和共烧工艺制备的掺杂LaGaO_3膜的多孔载体。使用不同的制备方法和组成来提高中温固体氧化物燃料电池的功率密度。采用改进的浸渍法合成了具有细小颗粒和高表面积的多孔微结构的NiO-SDC前驱体粉末，并与球磨法合成了NiO-SDC前体粉末。此外，在700、600和500℃时，分别获得了几乎等于理论值1.1 V的开路电压和分别为835、277和67 mW cm〜2的最大功率密度。当使用60 nm厚的掺Sr和Mg的没食子酸镧（LSGM）电解质时，由75 wt％Ni-SDC金属陶瓷阳极支撑的单电池。功率密度的提高是由于阳极的反应面积增大而造成的，这是由于高孔隙率以及Ni和SDC颗粒的均匀分布导致阳极的极化电阻低所致。尽管少量的Ni扩散到La掺杂的二氧化铈（LDC）缓冲层和LSGM电解质膜之间的界面上，但似乎抑制了劣化电池性能的不良反应，因此在硅上实现了相当高的功率密度。电池采用通过丝网印刷法制备的LSGM膜，并优化了阳极基板的结构和组成。

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  • 来源
    《International journal of hydrogen energy》 |2011年第22期|p.14632-14642|共11页
  • 作者

    Jong-Eun Hong; Toru Inagaki; Shintaro Ida; Tatsumi Ishihara;

  • 作者单位

    Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Motoofea 744, Nishi-Ku, Fufeuofea 819-0395, Japan,Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University, Motoofea 744, Nishi-feu,Fufeuofea 819-0395, Japan;

    The Kansai Electric Power Co., Inc., 11-20 Nafeoji 3-chome, Amagasafei, Hyogo 661-0974, Japan;

    Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Motoofea 744, Nishi-Ku, Fufeuofea 819-0395, Japan;

    Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Motoofea 744, Nishi-Ku, Fufeuofea 819-0395, Japan,Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University, Motoofea 744, Nishi-feu,Fufeuofea 819-0395, Japan;

  • 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

    solid oxide fuel cell; Ni-SDC cermet; modified impregnation method; LSGM electrolyte film; screen printing method;

    机译：固体氧化物燃料电池Ni-SDC金属陶瓷改进的浸渍方法;LSGM电解质膜;丝网印刷方法;

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