A novel multistep dip-coating method for the fabrication of anode-supported microtubular solid oxide fuel cells
A novel multistep dip-coating method for the fabrication of anode-supported microtubular solid oxide fuel cells
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DOI：
10.1007/s10008-014-2429-8
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发表时间：
2014-07-01
影响因子：
2.5
通讯作者：
Tsutsumi, Atsushi
中科院分区：
文献类型：
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作者：
Panthi, Dhruba;Tsutsumi, Atsushi
提出了一种新型的多步骤浸渍涂层方法，并成功地应用于以碳棒为可燃芯制备阳极支撑型微管固体氧化物燃料电池（sofc）。制备的微管sofc由ni -钇稳定氧化锆（YSZ）、YSZ、掺锶锰酸镧(LSM)-YSZ和LSM分别作为阳极、电解质、阴极和阴极集流材料组成。为了研究阳极孔隙率对电池性能的影响，制备了两种类型的阳极支架：一种不含孔隙形成剂，另一种含10 wt.%石墨孔隙形成剂。采用扫描电镜对微管sofc的微观结构特征进行了表征，并通过电化学阻抗谱测量和I-V特性曲线对其电化学性能进行了表征。结果表明，该方法是制备微管sofc的一种简单、低成本的方法。我们发现阳极孔隙率通过降低浓度极化对提高微管SOFC的整体性能起着重要作用。
A novel multistep dip-coating method was developed and successfully applied to the fabrication of anode-supported microtubular solid oxide fuel cells (SOFCs) using carbon rods as combustible cores. The fabricated microtubular SOFCs consisted of Ni-yttria-stabilized zirconia (YSZ), YSZ, strontium-doped lanthanum manganite (LSM)-YSZ, and LSM as the anode, electrolyte, cathode, and cathode current collector materials, respectively. To investigate the role of anode porosity on cell performance, two types of anode supports were prepared: one without a pore former and the other with a 10 wt.% graphite pore former. The microstructural features of the microtubular SOFCs were examined using scanning electron microscope images whereas the electrochemical performance was characterized by electrochemical impedance spectroscopy measurements as well as I-V characteristic curves. The results showed that the method used is a simple and low-cost alternative to conventional methods for the fabrication of microtubular SOFCs. We found that the anode porosity played an important role in improving the overall performance of the microtubular SOFC by reducing the concentration polarization.