168140 20260127160850.0 sideral 146871 ART-2012-146871 mul Torres, M.A. Universidad de Zaragoza (orcid)0000-0003-3995-5763 Improvement of thermoelectric properties of Bi2Sr2Co1.8Ox through solution synthetic methods 2012 Several solution synthetic methods, sol-gel and a polymeric route, have been studied in order to obtain Bi2Sr2Co1.8Ox ceramics with improved thermoelectric properties, compared to the classical solid state reaction. The products obtained by these different methods have been compared using DTA-TGA, powder X-ray diffraction, scanning electron microscopy, and thermoelectric characterizations. All the samples obtained by solution synthesis show higher homogeneity and lower content of secondary phases. The main differences in thermoelectrical properties are due to the decrease of electrical resistivity in samples obtained by solution methods, compared with the solid state obtained samples. Between them, the decrease is especially high for those samples prepared by the polymer solution method. Therefore, the polymeric solution synthesis route is shown to yield a power factor four times higher than the obtained for the solid state and sol-gel methods at room temperature. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA/T12 info:eu-repo/grantAgreement/ES/DGA/T87 info:eu-repo/grantAgreement/ES/MICINN/MAT2008-00429 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 0.404 2012 MATERIALS SCIENCE, CERAMICS 16 / 27 = 0.593 2012 Q3 T2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 Rasekh, Sh. (orcid)0000-0003-3466-9952 Serrano, I. Constantinescu, G. (orcid)0000-0002-1614-1962 Madre, M.A. Universidad de Zaragoza (orcid)0000-0002-0794-3998 Diez, J.C. Universidad de Zaragoza (orcid)0000-0001-9995-6368 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 51, 1 (2012), 1-6 Bol. Soc. Esp. Ceram. Vidr. Boletin de la Sociedad Espanola de Ceramica y Vidrio 0366-3175 570133 http://zaguan.unizar.es/record/168140/files/texto_completo.pdf Versión publicada 3115256 http://zaguan.unizar.es/record/168140/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:168140 articulos driver 2026-01-27-15:01:09 ARTICLE