Chemical compatibility of chromium-based interconnect related materials with doped cerium oxide electrolyte

XRD and SEM were used to study the chemical compatibility of (La,Sr)CrO3, SrCrO4, CaCrO4 and Cr2O3 (materials associated with the interconnect of a solid oxide fuel cell) with gadolinia-doped cerium oxide electrolyte (CGO). Powder mixtures and multilayer pellets of the interconnect related materials...

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Bibliographic Details
Published in:	Journal of the European Ceramic Society Vol. 19; no. 9; pp. 1697 - 1703
Main Authors:	HATCHWELL, C. E, SAMMES, N. M, TOMPSETT, G. A, BROWN, I. W. M
Format:	Journal Article
Language:	English
Published:	Oxford Elsevier 01-01-1999
Subjects:	Applied sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Cerium Oxides Chromites Chromium Oxides Interconnection Chemical stability Material compatibility Solid oxide fuel cell Gadolinium Oxides
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Summary:	XRD and SEM were used to study the chemical compatibility of (La,Sr)CrO3, SrCrO4, CaCrO4 and Cr2O3 (materials associated with the interconnect of a solid oxide fuel cell) with gadolinia-doped cerium oxide electrolyte (CGO). Powder mixtures and multilayer pellets of the interconnect related materials were annealed with CGO in air at temperatures ranging from 650 to 1600 C for durations of up to 400 h. No reaction was observed between (La,Sr)CrO3 and Ce0.8Gd0.2O1.9 after annealing at 1600 C for 10 h. However, SrCrO4, CaCrO4 and Cr2O3 reacted with CGO, forming an unidentified phase. 12 refs.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0955-2219 1873-619X
DOI:	10.1016/S0955-2219(98)00279-9