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- W2777887079 abstract "Lowering the operational temperature of ceria based electrolytes is important for commercialization of solid oxide fuel cells. Here, we report the effect of iron, strontium and iron/strontium co-addition in samarium (20 mol %) doped ceria (SDC) with respect to sintering, microstructural modifications and ionic conductivity. The nanoparticle synthesized through glycine-nitrate combustion method was sintered at 1000, 1200 and 1300 °C. An increase in density was observed in iron doped SDC due to viscous flow sintering while co-addition of strontium and iron lead to the reactive sintering at 1300 °C by forming a eutectic liquid phase which resulted in the density of 99%. The presence of iron and strontium generated a compensatory tensile strain in the lattice and an enhancement in oxygen vacancy concentration which resulted in higher ionic conductivity. Co-addition of strontium and iron in SDC, not only increases the density but also reduces the activation energy for grain boundary conductivity." @default.
- W2777887079 created "2018-01-05" @default.
- W2777887079 creator A5046888383 @default.
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- W2777887079 date "2018-04-01" @default.
- W2777887079 modified "2023-10-16" @default.
- W2777887079 title "Grain boundary scavenging through reactive sintering of strontium and iron in samarium doped ceria electrolyte for ITSOFC applications" @default.
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- W2777887079 doi "https://doi.org/10.1016/j.materresbull.2017.12.047" @default.
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