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- W128539538 abstract "Bi0.5Sr0.5MnO3 (BSM), a manganite-based perovskite, has been investigated as a new cathode material for intermediate-temperature solid oxide fuel cells (SOFCs). The average thermal-expansion coefficient of BSM is 14 × 10−6 K−1, close to that of the typical electrolyte material. Its electrical conductivity is 82–200 S cm−1 over the temperature range of 600–800 °C, and the oxygen ionic conductivity is about 2.0 × 10−4 S cm−1 at 800 °C. Although the cathodic polarization behavior of BSM is similar to that of lanthanum strontium manganite (LSM), the interfacial polarization resistance of BSM is substantially lower than that of LSM. The cathode polarization resistance of BSM is only 0.4 Ω cm2 at 700 °C and it decreases to 0.17 Ω cm2 when SDC is added to form a BSM–SDC composite cathode. Peak power densities of single cells using a pure BSM cathode and a BSM–SDC composite electrode are 277 and 349 mW cm2 at 600 °C, respectively, which are much higher than those obtained with LSM-based cathode. The high electrochemical performance indicates that BSM can be a promising cathode material for intermediate-temperature SOFCs." @default.
- W128539538 created "2016-06-24" @default.
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- W128539538 date "2011-02-01" @default.
- W128539538 modified "2023-10-11" @default.
- W128539538 title "Bi0.5Sr0.5MnO3 as cathode material for intermediate-temperature solid oxide fuel cells" @default.
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- W128539538 doi "https://doi.org/10.1016/j.jpowsour.2010.08.057" @default.
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