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首页> 外文期刊>Electrocatalysis >Fabrication and Characterization of Graded Anodes for Anode-Supported Solid Oxide Fuel Cells by Tape Casting and Lamination
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Fabrication and Characterization of Graded Anodes for Anode-Supported Solid Oxide Fuel Cells by Tape Casting and Lamination

机译：带式铸造和层压的阳极支撑固体氧化物燃料电池梯度阳极的制备与表征

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摘要

Graded anodes for anode-supported solid oxide fuel cells (SOFCs) are fabricated by tape casting and subsequent cold lamination of plates using different compositions Rheological parameters are adjusted to obtain stable suspensions for tape casting. The conditions for the tape casting and lamination will be described. Flexural strength of the reduced cermets measured using three-point bending configuration is 468±37 MPa. The graded anode supports are characterized by scanning electron microscope observations, mercury porosimetry intrusion, and resistivity measurements, showing an adequate and homogeneous distribution of nickel, zirconia, and pores. The laminated samples showed a total porosity of 18.7 % (in vol%) and a bimodal pore size distribution centered in 20 and 150 nm, and the measured electrical resistivity of this sample was 120±12 μO cm. The novelty of the present work is the lamination of tapes at room temperature without using plasticizers. This is made by the combination of two different binders with varying T_g (glass transition temperature) which resulted in plastic deformation at room temperature. Those results indicate that the proposed process is a cost-effective method to fabricate anode-supported SOFCs.
机译：用于阳极支撑的固体氧化物燃料电池（SOFC）的分级阳极是通过流延铸造制造的，随后使用不同的成分对板进行冷层压。调节流变参数以获得用于流延铸造的稳定悬浮液。将描述带浇铸和层压的条件。使用三点弯曲配置测量的还原金属陶瓷的抗弯强度为468±37 MPa。梯度阳极支撑件的特征在于扫描电子显微镜观察，水银孔隙率法测井和电阻率测量，显示出镍，氧化锆和孔的足够均匀的分布。层压样品显示出总孔隙率为18.7％（以体积％计），并且双峰孔径分布集中在20和150nm，并且该样品的测量电阻率为120±12μOcm。当前工作的新颖性是在不使用增塑剂的情况下在室温下层压胶带。这是通过将两种不同的T_g（玻璃化转变温度）不同的粘合剂结合在一起制成的，从而导致室温下的塑性变形。这些结果表明，所提出的工艺是制造阳极支撑的SOFC的经济有效的方法。

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