SOFC synthesis using electrostatic spray deposition

FUEL 204

Raymond Losch, loscray@iit.edu, J. R. Selman, selman@iit.edu, and Said Al-Hallaj, alhallaj@iit.edu. Center for Electrochemical Science and Engineering, Department of Chemical and Environemental Engineering, Illinois Institute of Technology, 10 W. 33rd St., Chicago, IL 60616
Electrostatic spray deposition is explored as a method of manufacturing solid oxide fuel cells. ESD was used to deposit the electrolyte and cathode layers of the cell. A colloidal solution of 8 mol% YSZ in ethanol was sprayed onto the substrate anode surface at 250–300 °C by ESD. The effects of substrate temperature on the density and surface morphology of the deposited layers was characterized. The surface morphology of the deposited layers became less dense with increasing temperature. We currently think that this is due to evaporation in the drop as it travels from the capillary to the substrate. Further work measuring our droplet size and modeling the evaporation oft the droplets is needed before these results can be confirmed.
 

Fuel Cell Technology: High Temperature Fuel Cells, SOFC and MCFC
8:00 AM-12:25 PM, Wednesday, August 22, 2007 Boston Park Plaza -- Cambridge Rm, Oral

Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix

Division of Fuel Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007