Synthesis of La1-xSrxCoO3-σ by a polymeric precursor route using microwave heating

Gaki, A; Karavangelis, C; Kakali, G; Wiglusz, RJ; Strek, W

dc.contributor.author	Gaki, A	en
dc.contributor.author	Karavangelis, C	en
dc.contributor.author	Kakali, G	en
dc.contributor.author	Wiglusz, RJ	en
dc.contributor.author	Strek, W	en
dc.date.accessioned	2014-03-01T02:47:05Z
dc.date.available	2014-03-01T02:47:05Z
dc.date.issued	2010	en
dc.identifier.issn	02555476	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32990
dc.subject	Conductivity	en
dc.subject	Lanthanum cobaltites	en
dc.subject	Microwave heating	en
dc.subject	Polymeric precursor route	en
dc.subject	Strontium doping	en
dc.subject.other	Conductivity	en
dc.subject.other	Dilatometry	en
dc.subject.other	Doped sample	en
dc.subject.other	Endmembers	en
dc.subject.other	FTIR	en
dc.subject.other	High temperature	en
dc.subject.other	Lanthanum cobaltite	en
dc.subject.other	Metallic behaviour	en
dc.subject.other	Oxide powder	en
dc.subject.other	Polymeric precursor route	en
dc.subject.other	Powder precursors	en
dc.subject.other	SEM image	en
dc.subject.other	Small grain size	en
dc.subject.other	XRD	en
dc.subject.other	Calcination	en
dc.subject.other	Cobalt compounds	en
dc.subject.other	Doping (additives)	en
dc.subject.other	Fourier transform infrared spectroscopy	en
dc.subject.other	Heating	en
dc.subject.other	Lanthanum	en
dc.subject.other	Lanthanum alloys	en
dc.subject.other	Microwave heating	en
dc.subject.other	Strontium	en
dc.subject.other	Thermal expansion	en
dc.subject.other	Microwaves	en
dc.title	Synthesis of La1-xSrxCoO3-σ by a polymeric precursor route using microwave heating	en
heal.type	conferenceItem	en
heal.identifier.primary	10.4028/www.scientific.net/MSF.636-637.901	en
heal.identifier.secondary	http://dx.doi.org/10.4028/www.scientific.net/MSF.636-637.901	en
heal.publicationDate	2010	en
heal.abstract	La1-xSrxCoO3-δ(x=0, 0.2, 0.5) powders were prepared by a polymeric precursor route, with the application of microwave heating for the precursor preparation. Single-phase oxide powders are obtained after calcination at 700°C for x=0, 0.2 and 1300 °C for x=0.5. XRD, FTIR and TG-DTG measurements were used to examine the powder precursors as well as the intermediate and final products. SEM images indicated the small grain size of samples with x=0, 0.2. Conductivity and thermal expansion were measured by means of DC method and dilatometry respectively. The end member LaCoO3-δ showed a semiconducting behaviour, while doped samples showed a metallic behaviour at high temperatures. La0.8Sr 0.2CoO3-δshowed the highest conductivity of all samples investigated, at temperatures higher than 300 °C. © (2010) Trans Tech Publications.	en
heal.journalName	Materials Science Forum	en
dc.identifier.doi	10.4028/www.scientific.net/MSF.636-637.901	en
dc.identifier.volume	636-637	en
dc.identifier.spage	901	en
dc.identifier.epage	907	en