Obtaining and characterization of Mixed Oxides of 1-xSrxMnO3+-8

• Autores: Vásquez, Carlos, Ponce, Silvia, Gutarra, Abel
• Formato: artículo
• Fecha de Publicación: 2001
• Institución: Universidad Nacional de Ingeniería
• Repositorio: Revistas - Universidad Nacional de Ingeniería
• Lenguaje: español
• OAI Identifier: oai:oai:revistas.uni.edu.pe:article/525
• Enlace del recurso: https://revistas.uni.edu.pe/index.php/tecnia/article/view/525
• Nivel de acceso: acceso abierto

Mixed oxides of the La, Sr MnO, ± (x=0.0-0.5) series were prepared by the citrate method. The characterization was carried out structurally by X-ray diffraction (XRD) and elementally by inductive plasma coupling.(ICP). The Mn/Mn" ratio of the oxide was determined by iodometry. The specific area of ​​the powder sample wasdetermined by BET. The electronic transport properties for different levels of La substitution were done at different temperatures between 300-700 K. The characterization results show us that our manufacturing technique produces oxides of the La, Sr MnOs type with favorable properties to be used as cathodes in fuel cells.