By Narottam P. Bansal, Jonathan Salem, Dongming Zhu
Papers from the yank Ceramic Society's thirty first foreign convention on complex Ceramics and Composites, held in Daytona seashore, Florida, January 21-26, 2007. content material comprises papers on contemporary technical development through nationwide laboratories, universities and personal industries on reliable oxide gas mobile expertise together with SOFC part fabrics, processing, cell/stack fabrication and layout, electrochemical functionality and balance, long term chemical interactions, interface engineering, modeling, attempt strategies and function analysis.Content:
Read or Download Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4 PDF
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Additional resources for Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4
The temperature increased with increasing current. The reason of these temperature variations can be considered as follows. 36 . Advances in Solid Oxide Fuel Cells 111 Electrochemical Evaluation of Micro-Tubular SOFC and Module for Ceramic Reactor When the current applied, oxygen is incorporated into the cell as oxide ion and the oxygen potential in the GDC electrolyte increases. Along with the oxidization of the GDC electrolyte, the electronic conductivity decreases. Then the electronic leakage through the electrolyte decreases and the temperature decreases.
With Advances in Solid Oxide Fuel Cells Ill . 3 times of that for the later at the honeycomb length of 1Omm. This behavior is caused by high resistance of thin cathode layer inside the channels of anode support honeycomb-type SOFC. The current at anode support honeycomb above 2mm length deviated significantly from the ideal value calculated under the condition in which ohmic resistance of thin cathode layer can’t be ignored. On the other hand, in the case of cathode support type, current can increase almost linearly with increasing honeycomb length without large deviations from ideal current values, because current collecting losses of cathode honeycomb body and thin anode layer are quite small.
The photo-electrochemical etching is a scalable processing for fabricating high perfoniiance and cost-effective metal supported SOFCs in future. Current Density (mA/cm*) Fig. 7. I-I' characteristics of SSC // SDC/ScSZ // Ni-SDC // Laser drilled SS substrate at the temperature range 550-600 OC under humid 50% H2 in Ar (3% HzO) and air. (Fabrication date: Fall 2006) 22 . Advances in Solid Oxide Fuel Cells 111 Development of Metal Supported Thin Film SOFCs at ICPETINRCC Fig. 8. Impedance spectra of metal supported and anode supported SOFCs under open circuit voltage at 600 T.
Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4 by Narottam P. Bansal, Jonathan Salem, Dongming Zhu