| Download | - View accepted manuscript: Low temperature solid oxide fuel cells with pulsed laser deposited bi-layer electrolyte (PDF, 1.5 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/j.jpowsour.2006.09.102 |
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| Author | Search for: Yang, Dongfang1; Search for: Zhang, Xinge2; Search for: Nikumb, Suwas1; Search for: Decès-Petit, Cyrille2; Search for: Hui, Rob2; Search for: Maric, Radenka2; Search for: Ghosh, Dave2 |
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| Affiliation | - National Research Council of Canada. NRC Industrial Materials Institute
- National Research Council of Canada. NRC Institute for Fuel Cell Innovation
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| Format | Text, Article |
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| Subject | SOFC; low temperature; SDC; ScSZ; bi-layer electrolyte; pulsed laser deposition |
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| Abstract | Solid oxide fuel cells (SOFC) using a pulsed laser deposited bi-layer electrolyte have been successfully fabricated and have shown very good performance at low operating temperatures. The cell reaches power densities of 0.5 W cm−2 at 550 °C and 0.9 W cm−2 at 600 °C, with open circuit voltage (OCV) values larger than 1.04 V. The bi-layer electrolyte contains a 6–7 μm thick samarium-doped ceria (SDC) layer deposited over a ∼1 μm thick scandium-stabilized zirconia (ScSZ) layer. The electrical leaking between the anode and cathode through the SDC electrolyte, which due to the reduction of Ce4+ to Ce3+ in reducing environment when using a single layer SDC electrolyte, has been eliminated by adopting the bi-layer electrolyte concept. Both ScSZ and SDC layers in the bi-layer electrolyte prepared by the pulsed laser deposition (PLD) technique are the highly conductive cubic phases. Poor conductive (Zr, Ce)O2-based solid solutions or β-phase ScSZ were not found in the bi-layer electrolyte prepared by the PLD due to low processing temperatures of the technique. Excellent reliability and flexibility of the PLD technique makes it a very promising technique for the fabrication of thin electrolyte layer for SOFCs operating at reduced temperatures. |
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| Publication date | 2006-11 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21274296 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 1fdc94b0-198b-44b0-9c07-4820148baabb |
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| Record created | 2015-03-09 |
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| Record modified | 2020-06-04 |
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