BONTURIM, EVERTONMAZZOCCHI, VERA L.PARENTE, CARLOS B.R.MESTNIK FILHO, JOSELIMA, NELSON B. deSEO, EMILIA S.M.2015-12-282015-12-282015BONTURIM, EVERTON; MAZZOCCHI, VERA L.; PARENTE, CARLOS B.R.; MESTNIK FILHO, JOSE; LIMA, NELSON B. de; SEO, EMILIA S.M. Oxygen stoichiometry of Basub(0.50)Srsub(0.50)Cosub(0.80)Fesub(0.20)Osub(3-'delta') obtained by EDTA-citrate method and measured by X-ray and neutron diffraction. <b>Journal of Radioanalytical and Nuclear Chemistry</b>, v. 306, p. 769-773, 2015. DOI: <a href="https://dx.doi.org/10.1007/s10967-015-4310-3">10.1007/s10967-015-4310-3</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/25408.0236-5731http://repositorio.ipen.br/handle/123456789/25408The compound Ba0.50Sr0.50Co0.80Fe0.20O3–d (BSCF) has been used as a good candidate for air electrodes in Intermediate Temperature Solid Oxide Fuel Cells. Present work deals with the oxygen vacancy of this compound synthesized by using the EDTA–Citrate method. To obtain a single-phase sample, three portions of the compound were calcined at 700, 800 and 900 C. Only the sample calcined at 900 C showed a single phase. The stoichiometry of the single-phase sample, in particular of the oxygen atom, was determined by applying the combined X-ray and neutron Rietveld refinement to X-ray and neutron powder diffraction patterns measured with the sample.769-773openAccessbarium oxidescitratescobalt oxidesedtaelectrochemical cellsfuel cellsiron oxidesneutron diffractionoxygenstoichiometrystrontium oxidesx-ray diffractionArtigo de periódico30610.1007/s10967-015-4310-3https://orcid.org/0000-0002-6444-922431.81