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Based on its reduced-temperature redox-stable phenomenon, the state-of-the-art perovskite oxide La0.8Sr0.2MnO3-δ (LSM) is proposed as a novel symmetrical electrode material for solid oxide fuel cells (SOFCs) at intermediate temperatures. LSM exhibits redox instability at high temperatures (≥850 °C) in agreement with the literature, whereas LSM is stable in both fuel and air conditions at intermediate...
Ultrathin MnO2 nanosheets-built nanotubes have been fabricated via a large-scale chemical etching method. The diameter and thickness of MnO2 nanotubes can be controlled by fine-tuning the concentration of KMnO4 solution, and the relationship between electrochemical properties and different wall thickness is notably investigated. Besides, the MnO2 nanotubes possess a high surface area of 179.5m2g−1...
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