TG-DTA study of mixed conductor Sr4(Fe1−xCox)6O13±δ in air and argon
Source abstract
Abstract
The synthesis, structure, electrical conductivity and TG-DTA behavior in air and argon of the Sr4(Fe1−xCox)6O13±δ samples with x=0–0.417 were investigated. While the Sr4(Fe1−xCox)6O13±δ solid solutions being isostructural with Sr4Fe6O13 were formed for 0<x⩽0.25, the Sr4(Fe1−xCox)6O13±δ phase and the perovskite phase Sr(Fe1−yCoy)O3 coexisted for x=0.333 and the perovskite phases of Sr(Fe1−yCoy)O3 and SrCoO2.8 were formed along with a trace of CoO for x= 0.417. The total conductivity increased with increasing Co substitution and temperature. The relationship between the weight changes observed in TG experiments and the total conductivity is reported.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Advanced Condensed Matter Physics
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References (10)
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