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Spray pyrolysis of doped-ceria barrier layers for solid oxide fuel cells

Abstract

Gadolinium doped ceria (Ce0.8Gd0.2O2 − x-CGO) layer fabricated by spray pyrolysis is investigated as the diffusion barrier for solid oxide fuel cell. It is deposited between the La0.6Sr0.4FeO3 − δ cathode and the yttria stabilized zirconia electrolyte to mitigate harmful interdiffusion of elements. The parameters of the fabrication process are linked to the measured area specific resistances of the symmetrical cells and the efficiency of the fuel cells. Results show, that application of 800 nm thick barrier effectively hinder negative reactions, while 400 nm thick layer is sufficient to prevent degradation of the Ohmic resistance.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
SURFACE & COATINGS TECHNOLOGY no. 313, pages 168 - 176,
ISSN: 0257-8972
Language:
English
Publication year:
2017
Bibliographic description:
Szymczewska D., Chrzan A., Karczewski J., Molin S., Jasiński P.: Spray pyrolysis of doped-ceria barrier layers for solid oxide fuel cells// SURFACE & COATINGS TECHNOLOGY. -Vol. 313, (2017), s.168-176
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.surfcoat.2017.01.066
Verified by:
Gdańsk University of Technology

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