By Narottam P. Bansal, Jonathan Salem, Dongming Zhu
Papers from the yankee Ceramic Society's thirty first overseas convention on complicated Ceramics and Composites, held in Daytona seashore, Florida, January 21-26, 2007. content material contains papers on fresh technical development through nationwide laboratories, universities and personal industries on sturdy oxide gasoline phone expertise together with SOFC part fabrics, processing, cell/stack fabrication and layout, electrochemical functionality and balance, long term chemical interactions, interface engineering, modeling, try out approaches and function analysis.Content:
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Extra info for Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4
On the other hand. in the case of electrode-supported honeycomb-type SOFCs, electrolyte layer can be formed a s a thin film (decrease in the ohmic resistance) and all of channels can be used as only air (or fuel) supplying passes (increase in electrode area) by using the body of honeycomb (which needs to be porous) as passes for supplying the other gas (for example, body for air and channels for fuel). Houever, the fabrication process of a dense and thin electrolyte layer on the porous honeycomb channel wall hasn’t been developed so far.
3) as a function of honeycomb length. The parameters used in this calculation are listed in Table 2. In the range that honeycomb length is equal to or less than 7mm, current for anode-supported type was larger than that for cathode-supported one. However. 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.
LSM honeycomb monolith with channel density of 700 cpsi (channels per square inch) and wall thickness of 200pm were extruded with the mixed mass. Coating technolow for subseouent inner wall coating After drying LSM honeycomb. the inner wall of multi channels in the LSM honeycomb were coated simultaneously with scandium stabilized zirconia (ScSZ ( 1 Cel OScSZ) Daiichi Kigenso Kagaku Kogyo Co.. ) electrolyte slurry by the slurry injection method and co-fired at 1300°C for 2 h. Figure 2 shows schematic image of the slurry injection system for inner w-all coating of honeycomb channels.
Advances in Solid Oxide Fuel Cells III: Ceramic and Engineering Science Proceeding, Volume 28, Issue 4 by Narottam P. Bansal, Jonathan Salem, Dongming Zhu