Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/39816
Title: Stability and performance of nano-structured cathodes prepared by impregnation methods
Authors: Vu, Edmund Van Tien
Keywords: DRNTU::Engineering::Mechanical engineering::Energy conservation
Issue Date: 2010
Abstract: Solid oxide fuel cells (SOFCs) are devices that convert the chemical energy of a fuel directly into electricity by electrochemical reactions. Lanthanum strontium manganite (LSM) is a most commonly used cathodes of high-temperature SOFCs. Operating at intermediate or lower temperatures will lead to a significant increase of the electrode polarization resistance as a result of LSM low ionic conductivity and high activation energy. However, the incorporation of nano gadolinia-doped ceria (GDC) particles via impregnation leads to significant enhancement in the electrochemical performance of LSM at reduced temperatures, because GDC has high ionic conductivity and surface exchange rate. On the other hand, stability issue is also raised due to the easy growth of nano particles.
URI: http://hdl.handle.net/10356/39816
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Student Reports (FYP/IA/PA/PI)

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