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Structural and Physical Property Trends of the Hyperstoichiometric Series, La2Ni(1-x)CoxO4+δ

Published online by Cambridge University Press:  11 February 2011

G. Amow ,
P. S. Whitfield ,
J. Davidson ,
R. P. Hammond ,
C. Munnings  and
S. Skinner
G. Amow
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada.
P. S. Whitfield
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada.
J. Davidson
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada.
R. P. Hammond
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada. Neutron Program tor Materials Research, Chalk River Laboratories, Chalk River, Ontario, Canada.
C. Munnings
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada. Neutron Program tor Materials Research, Chalk River Laboratories, Chalk River, Ontario, Canada. Centre for Ion Conducting Membranes, Department of Materials, Imperial College London, London, UK.
S. Skinner
Affiliation:
Institute for Chemical Process and Environmental Technology, National Research Council, Ottawa, Ontano, Canada. Neutron Program tor Materials Research, Chalk River Laboratories, Chalk River, Ontario, Canada. Centre for Ion Conducting Membranes, Department of Materials, Imperial College London, London, UK.
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Abstract

Members of the Ruddlesden-Popper system, La2Ni(1-x)CoxO4+δ (0.00 ≤ × ≤ 1.00), were synthesized and studied for their potential use as cathodes for solid-oxide fuel cells. An unusual structural trend has been noted across the series, which appears to correlate with the oxygen-hyperstoichiometry observed. Details of the structural variance by x-ray and neutron diffraction, as well as selected physical properties for this system will be presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 755: Symposium DD – Solid-State Chemistry of Inorganic Materials IV , 2002 , DD8.10
Copyright
Copyright © Materials Research Society 2003

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References

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