Electrophoretic Impregnation/Deposition Complemented with Polymeric Templating for the Fabrication of Functionalized-Porosity Layered-Ceramics: A Solid-Oxide-Fuel-Cells Approach

A simple, economical, and environmentally compatible methodology for the fabrication of layered ceramics is presented herein. Water‐based electrophoretic techniques and polymeric templating were combined to fabricate graded‐porosity ceramic foams with controlled pore size, pore geometry, and excelle...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2012-02, Vol.95 (2), p.593-599
Main Authors: Mayén-Mondragón, Rodrigo, Falk, Guido, Clasen, Rolf
Format: Article
Language:English
Subjects:
Ceramics
Deposition
Economics
Electrodes
Methodology
Porosity
Solid electrolytes
Solid oxide fuel cells
Yttria stabilized zirconia
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Summary:A simple, economical, and environmentally compatible methodology for the fabrication of layered ceramics is presented herein. Water‐based electrophoretic techniques and polymeric templating were combined to fabricate graded‐porosity ceramic foams with controlled pore size, pore geometry, and excellent pore connectivity. Dense ceramic films can be laid either on top of the porous ceramic or in a sandwich‐style configuration. A single fabrication step suffices when working a single material (or material composition). Else, two or more fabrication steps are required. The two‐step manufacture of a half solid‐oxide‐fuel‐cell is presented. The yttria‐stabilized zirconia (8YSZ) solid electrolyte layer was deposited on top of the templated graded‐porosity nickel‐oxide/8YSZ electrode. The present methodology promises alternatives to current fabrication processes.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2011.04960.x