Abstract
To lower solid oxide fuel cell operating temperatures down to ≤ 700°C, we fabricated La0.8Sr0.2MnO3–Bi1.44Y0.56O3 (LSM-YDB) cathode films from a “single-pot” mixture of polymeric LSM and YDB precursors, which yielded nanocomposite-structured films with long triple phase boundary lengths. Alternating nanolayers of LSM and YDB phases were revealed by STEM-EDS analysis. The microstructure forming at 600°C contained YDB nanoparticles in the LSM phase and LSM nanoparticles in the YDB phase, ensuring 3-D interconnectivity for each phase and a percolation pathway. An area specific polarization resistance of 0.55 cm2 was measured at 600°C.
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Acknowledgments
This work was funded by the Scientific and Technological Research Council of Turkey (TUBITAK) under the grant number 217M031.
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Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, 217M031, Aligul Buyukaksoy
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Aktas, B., Bal, B., Sezen, M. et al. Solution processed La0.8Sr0.2MnO3–Bi1.44Y0.56O3 composite thin films with self-assembled nanolayered structures. MRS Communications 13, 1357–1362 (2023). https://doi.org/10.1557/s43579-023-00461-z
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DOI: https://doi.org/10.1557/s43579-023-00461-z