Journal Article

PreJuSER-6468

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Properties of bias-assisted sputtered gadolinia-doped ceria interlayers for solid oxide fuel cells

Fonseca, F. C. ; Uhlenbruck, S.FZJ* ; Nédélec, R.FZJ* ; Buchkremer, H. P.FZJ*

2010
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jpowsour.2009.09.050

Abstract: The growth and electrochemical properties of gadolinia-doped ceria (GDC) inlet layers deposited by bias-assisted magnetron sputtering in solid oxide fuel cells have been investigated Such interlayers act as diffusion barriers to protect the yttria-stabilized zirconia electrolyte. preventing possible degradation when mixed ionic-electronic conductor (La,Si)(Co,Fe)O3-delta is used as the cathode The dependence of the applied bias during the sputtering deposition on both the interlayer microstructure and fuel cell performance has been studied in anode-supported single cells. The main experimental results Showed that bias-assisted sputtering of GDC interlayers produced microstructures denser than those of unbiased deposit ions, which resulted in increased electrochemical properties of fuel cells (C) 2009 Elsevier B.V All rights reserved

Keyword(s): J ; Solid oxide fuel cells (auto) ; Bias-assisted sputtering (auto) ; Ceria interlayer (auto) ; Mixed ionic-electronic cathode (auto) ; Anode supported (auto)

Note: FCF is thankful for the Brazilian agencies FAPESP (2007/08686-8) and CNPq (306422/2007-7). F. Vondahlen and W. Herzhof are thanked for helping us with PVD depositions and samples Supplying/cathode depositions respectively.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEF-1)

Research Program(s):

1. Rationelle Energieumwandlung (P12)
2. SOFC - Solid Oxide Fuel Cell (SOFC-20140602) (SOFC-20140602)

Appears in the scientific report 2010

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