Influence of microstructure and applied current on the electrical conductivity of SmBaCo2O5+d cathode in solid oxide fuel cell

Kyeong Eun Song, Jae Woong Lee, Yu Ri Lim, Seung Wook Baek, Tae Ho Shin, Shinku Lee, Harald Schlegl, Jung Hyun Kim

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

In this study, the electrical conductivity of SmBaCo2O5+d (SBCO) is measured and analyzed with respect to the microstructure of the analyzed samples. The microstructure is influenced by the sintering temperature and by the precise composition of the composite cathode. Difference in the electrical conductivity at different applied current is investigated. The value of the electrical conductivity of SBCO sintered at 1150 °C was about 1024 S/cm at 600 °C, which was the highest compared to other samples sintered at lower temperatures. The electrical conductivities of porous microstructural SBCO sintered at 1150 °C with an addition of 10 wt% carbon black and of a composite cathode comprised of SBCO and Ce0.9Gd0.1O2 (CGO91) at a ratio of 1.9:0.1 were 256 and 525 S/cm at 600 °C. The electrical conductivities of SBCO samples increase when relatively low currents are applied. This trend can be observed at all pure SBCO and samples mixed with carbon black. However, these properties are not found in composite cathodes comprised of SBCO and CGO91.

原文English
頁(從 - 到)15875-15886
頁數12
期刊International Journal of Hydrogen Energy
47
發行號35
DOIs
出版狀態Published - 2022 4月 26

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 燃料技術
  • 凝聚態物理學
  • 能源工程與電力技術

指紋

深入研究「Influence of microstructure and applied current on the electrical conductivity of SmBaCo2O5+d cathode in solid oxide fuel cell」主題。共同形成了獨特的指紋。

引用此