Cathode-supported micro-tubular SOFCs based on Nd1.95NiO4 + δ: Fabrication and characterisation of dip-coated electrolyte layers
Luebbe, Henning; Van herle, Jan; Hofmann, Heinrich; Bowen, Paul; Aschauer, Ulrich; Schuler, Andreas; Snijkers, Frans; Schindler, Hans-Juergen; Vogt, Ulrich; Lalanne, Cécile
2009

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Abstract

Fabrication conditions to obtain dense electrolyte double layers on a porous micro-tubular cathode substrate were investigated. Porous tubes of a nickelate material, Nd1.95NiO4 + δ, were fabricated by cold-isostatic pressing (CIP) and sintering. Thin films of electrolyte powders Ce0.9Gd0.1O1.95 (GDC) and Zr0.89Sc0.1Ce0.01O1.95 (SSZ) were applied by dip-coating in aqueous suspensions. Electrolyte powders had been attrition-milled to decrease their particle size and densification temperature. The quantity of polyacrylic acid (PAA) as dispersant was optimised by ζ-potential measurements. The densification behaviour was studied by dilatometry and SEM-imaging. A sintering temperature of 1250 °C was found to densify GDC whereas SSZ-layers remained slightly porous.

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Title Cathode-supported micro-tubular SOFCs based on Nd1.95NiO4 + δ: Fabrication and characterisation of dip-coated electrolyte layers
Author(s) Luebbe, Henning ; Van herle, Jan ; Hofmann, Heinrich ; Bowen, Paul ; Aschauer, Ulrich ; Schuler, Andreas ; Snijkers, Frans ; Schindler, Hans-Juergen ; Vogt, Ulrich ; Lalanne, Cécile
Published in Solid State Ionics
Volume 180
Issue 11-13
Pages 805-811
Conference 11th ELECTROCERAMICS Conference 2008, Manchester, England, Aug 31-Sep 04, 2008
Date 2009
Keywords
DOI https://doi.org/10.1016/j.ssi.2009.01.010
Other identifier(s) View record in Web of Science
Laboratories LTP
LENI
Record Appears in Scientific production and competences > STI - School of Engineering > STI Archives > LENI - Industrial Energy Systems Laboratory
Scientific production and competences > STI - School of Engineering > IMX - Institute of Materials > LTP - Powder Technology Laboratory
Peer-reviewed publications
Conference Papers
Work produced at EPFL
Published
Record creation date 2009-08-18

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