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The effect of anode support on the electrochemical performance of microtubular solid oxide fuel cells fabricated by gel-casting

机译：阳极载体对凝胶铸造制造的微管固体氧化物燃料电池电化学性能的影响

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摘要

Different cell configurations of anode-supported microtubular solid oxide fuel cells (mT-SOFCs) using samaria-doped ceria (SDC) as the electrolyte were fabricated. Several cells were processed varying the porosity and wall thickness (outer diameter) of NiO-SDC tubular supports. Suitable aqueous slurry formulations of NiO-SDC for gel-casting were prepared using agarose, as a gelling agent, and sucrose, as a pore former. The subsequent NiO-SDC anode functional layer (AFL), the SDC electrolyte and the La0.6Sr0.4Co0.2Fe0.8O3 similar to delta-SDC cathode were deposited by spray-coating. Pre-sintering temperatures of the supports were optimized from linear shrinkage curves, thus obtaining after co-sintering, a dense electrolyte without anode-electrolyte delamination. Electrochemical characterization of mT-SOFC cells fabricated by agarose gel-casting is reported by the first time. The cell with a support of 2.6 mm diameter, 380 mm wall thickness, an active area of 1 cm(2) and added porosity, using 10 wt% sucrose, achieved a maximum power density of about 400 mW cm(-2) at 650 degrees C.
机译：制造使用钐掺杂的二氧化铈（SDC）作为电解质的阳极支持的微管固体氧化物燃料电池（MT-SOFC）的不同细胞构型。处理几种细胞改变NiO-SDC管状支撑件的孔隙率和壁厚（外径）。使用琼脂糖，作为胶凝剂和蔗糖，制备合适的NiO-SDC用于凝胶铸件的NiO-SDC的制剂作为孔剂。通过喷涂沉积随后的NiO-SDC阳极功能层（AFL），SDC电解质和LA0.6SR0.4CO0.2FE0.8O3与ΔSDC阴极相似。支撑件的预烧结温度从线性收缩曲线进行了优化，从而在共烧制后获得致密电解质，没有阳极电解质分层。首次报道由琼脂糖凝胶铸造制造的MT-SOFC细胞的电化学表征。使用10wt％蔗糖的支撑件为2.6mm直径，380mm壁厚，有效面积的孔隙率和孔隙率的孔，在650时达到约400mm（-2）的最大功率密度C.

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  • 来源
    《RSC Advances》 |2015年第49期|共8页
  • 作者

    Morales M.; Laguna-Bercero M. A.; Navarro M. E.; Espiell F.; Segarra M.;

  • 作者单位

    Univ Barcelona Dept Ciencia dels Mat &

    Engn Met Ctr DIOPMA IN2UB E-08028 Barcelona Spain;

    Univ Zaragoza CSIC Inst Ciencia Mat Aragon E-50009 Zaragoza Spain;

    Univ Birmingham Sch Chem Engn Birmingham B15 2TT W Midlands England;

    Univ Barcelona Dept Ciencia dels Mat &

    Engn Met Ctr DIOPMA IN2UB E-08028 Barcelona Spain;

    Univ Barcelona Dept Ciencia dels Mat &

    Engn Met Ctr DIOPMA IN2UB E-08028 Barcelona Spain;

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  • 正文语种 eng
  • 中图分类 化学;
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