Pulsed laser deposition of Ba0.5Sr0.5Co0.8Fe0.2O3−δ thin film cathodes for low temperature solid oxide fuel cells
| Autor: | Chen-Chiang Yu, Shijie Wang, Lai Mun Wong, Yong Li, Pei-Chen Su |
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| Přispěvatelé: | School of Mechanical and Aerospace Engineering, Energy Research Institute @ NTU (ERI@N) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Analytical chemistry Oxide Pulsed laser deposition 02 engineering and technology Substrate (electronics) 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound law Materials Chemistry Deposition (phase transition) Area density Micro-solid oxide fuel cell Thin film Power density Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Cathode 0104 chemical sciences Surfaces Coatings and Films chemistry 0210 nano-technology |
| Popis: | Nanostructured Ba0.5Sr0.5Co0.8Fe0.2O3 − δ (BSCF) thin films were fabricated by pulsed laser deposition (PLD) as a cathode for low-temperature solid oxide fuel cells operated below 500 °C. The nanoscale features in BSCF cathode was obtained by controlling the deposition parameters of PLD including oxygen pressure and substrate temperature. Compared to dense BSCF thin film cathodes, the higher surface area density of surface-roughened BSCF improved the surface reactions of the cathode with ambient oxygen, and therefore effectively improved the cathode performance. Free-standing micro-solid oxide fuel cells with nanostructured BSCF cathode showed a higher peak power density of 55 mW cm− 2 at 450 °C as compared to those using dense BSCF thin film cathode. MOE (Min. of Education, S’pore) |
| Databáze: | OpenAIRE |
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