Preparation of Thin Proton Conducting Membranes by Means of EPD


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The present study uses electrophoretic deposition of yttrium doped barium cerate to prepare SOFC half cells on nickel/barium cerate (Ni/BaCe) and nickel / yttria stabilized zirconia (Ni/YSZ) substrates. Therefore we investigated charging and agglomeration behaviour of nanosized barium cerate powder in different solvents by means of a micro electrophoresis experiment and dynamic light scattering. Stable suspensions of barium cerate were prepared and deposition kinetics was examined prior to the preparation of thin membranes on the two cermets. Tests with different solvents and additive combinations showed that methyl-ethyl-keton (MEK) with addition of polyacrylic acid (PAA) is the best combination for the use of the suspension for electrophoretic deposition. Electrophoretic deposition in this case is a simple and low cost method to produce homogenous and dense layers in the scale of microns.



Edited by:

A. R. Boccaccini, O. van der Biest, R. Clasen, T. Uchikoshi






C. Argirusis et al., "Preparation of Thin Proton Conducting Membranes by Means of EPD ", Key Engineering Materials, Vol. 412, pp. 125-130, 2009

Online since:

June 2009




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