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首页> 外文会议>International symposium on solid oxide fuel cells >PROMISES AND PROBLEMS WITH METALLIC INTERCONNECTS FOR REDUCED TEMPERATURE SOLID OXIDE FUEL CELLS
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PROMISES AND PROBLEMS WITH METALLIC INTERCONNECTS FOR REDUCED TEMPERATURE SOLID OXIDE FUEL CELLS

机译：具有降低温度固体氧化物燃料电池的金属互连的承诺和问题

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The oxidation kinetics and electrical properties of oxide scales thermally grown on the surface of a commercial iron-based alloy have been investigated up to 1000°C. The effect of surface coating to improve performance was studied, and it was found that a double coating of Y and Ni oxide was most beneficial. While the Y oxide reduced the oxidation rate, the Ni oxide increased the Cr_2O_3 scale conductivity. Different electrodes were applied to the alloy or to pre-oxidized samples. Some of the electrodes, such as LaSrCoO_3 (LSCo), reacted strongly with the alloy upon oxidation by increasing the oxidation rate and forming a mixed Fe/Co/Cr interlayer that impeded conduction. Application of these electrodes to a pre-oxidized surface eliminated these problems. Preliminary results in reducing atmosphere using Ce_(0.8)+Sm_(0.2)O_(1.9)+Ni and Pt electrodes are also reported. The possibility of using Cr_2O_3 forming alloys as interconnects for low temperature solid oxide fuel cell is discussed in light of these results.
机译：在商业铁基合金表面上热生长的氧化动力学和电性能已经研究高达1000℃。研究了表面涂层以改善性能的影响，发现Y和Ni氧化物的双涂层最有益。虽然Y氧化物降低氧化速率，但Ni氧化物增加了CR_2O_3刻度的电导率。将不同的电极应用于合金或预氧化样品。一些电极，例如LasRCOO_3（LSCO），通过增加氧化速率并形成阻抗传导的混合Fe / Co / Cr中间层，在氧化时与合金强烈反应。将这些电极在预氧化表面中的应用消除了这些问题。还报告了使用CE_（0.8）+ SM_（0.2）O_（1.9）+ Ni和PT电极的减少气氛。根据这些结果讨论了使用Cr_2O_3形成合金作为低温固体氧化物燃料电池的互连的可能性。

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