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| Abstract No.: |
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Scheduled at:
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Tuesday, May 10, 2016, Auditorium 4:25 PM
Young Professionals Session
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| Title: |
Plasma spray manufacturing high-performance electrodes and electrolyte membranes for intermediate temperature solid oxide fuel cells
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| Authors: |
Chang-Jiu Li / Xi'an Jiaotong University, P.R. China
Shan-Lin Zhang* / State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
Cheng-Xin Li/ State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
Guan-Jun Yang/ State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
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| Abstract: |
Solid oxide fuel cells (SOFCs) have been widely investigated a clean and efficient alternative to the conventional power generation using fossil fuels. In recent years, plasma spraying (PS) has been developed and used for cost-effective fabrication of SOFCs because it is a proven low-cost, large-scale industrial production process that may greatly reduce the fabrication cost and accelerate the commercialization of SOFC technology. However, the critical challenge for plasma spraying is how to achieve the appropriate deposits for electrodes and electrolyte membranes because they need different requirements. Here, we will display our results in recent years on the manufacture of high-performance electrodes and electrolyte membranes for intermediate-temperature SOFCs (IT-SOFCs) by plasma spraying. According to the systematical study, it was found that the dense electrolyte membranes with high conductivity can be achieved by the optimization of microstructure and components during the spraying process. Meanwhile, the high-performance nanostructured porous electrodes can be obtained by the liquid plasma spraying. Therefore, the full cell were prepared by plasma spraying in present study. At 0.7 V, the porous steel supported cells consisting of plasma sprayed anode, electrolyte, and liquid plasma sprayed cathode demonstrate power densities more than 1.5 W cm-2 at 700 °C. The excellent performance of the cell suggested that plasma spraying is a promising approach for large-scale manufacturing of high-performance SOFC.
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