Preparation and characterization of

Riza, F; Ftikos, Ch; Tietz, F; Fischer, W

dc.contributor.author	Riza, F	en
dc.contributor.author	Ftikos, Ch	en
dc.contributor.author	Tietz, F	en
dc.contributor.author	Fischer, W	en
dc.date.accessioned	2014-03-01T01:16:58Z
dc.date.available	2014-03-01T01:16:58Z
dc.date.issued	2001	en
dc.identifier.issn	09552219	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14296
dc.subject	Electrical conductivity	en
dc.subject	Electron microscopy	en
dc.subject	Perovskites	en
dc.subject	Thermal expansion	en
dc.subject.other	Cathodes	en
dc.subject.other	Electrolytes	en
dc.subject.other	Ionic conduction	en
dc.subject.other	Oxides	en
dc.subject.other	Positive ions	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Solid oxide fuel cells	en
dc.subject.other	Synthesis (chemical)	en
dc.subject.other	Thermal expansion	en
dc.subject.other	X ray powder diffraction	en
dc.subject.other	Rare earth cations	en
dc.subject.other	Rare earth compounds	en
dc.subject.other	ceramics	en
dc.title	Preparation and characterization of	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0955-2219(01)00112-1	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0955-2219(01)00112-1	en
heal.publicationDate	2001	en
heal.abstract	In the present study the oxides Ln0.8Sr0.2Fe0.8Co0.2O3-x (Ln = La, Pr, Nd, Sm, Eu, Gd) were prepared and characterized to study the influence of the host rare earth cation on their properties and their potential application as intermediate temperature solid oxide fuel cell cathodes with higher ionic conductivity, lower linear thermal expansion coefficient and better chemical compatibility with the electrolyte. The oxides were prepared by the amorphous citrate synthesis. From X-ray powder diffraction measurements it was deduced that all oxides were single-phased with the sensitivity of the method. However, irregularities during thermal expansion measurements indicated that some structural changes might occur during heating. Only after examination of the powders in a scanning electron microscope, the presence of a second phase (cobalt oxide) in most compositions became evident. © 2001 Elsevier Science Ltd.	en
heal.journalName	Journal of the European Ceramic Society	en
dc.identifier.doi	10.1016/S0955-2219(01)00112-1	en
dc.identifier.volume	21	en
dc.identifier.issue	10-11	en
dc.identifier.spage	1769	en
dc.identifier.epage	1773	en