Electrochemical performance of YSZ coupled Ba_(0.5)Sr_(0.5)Fe_(0.9)Cu_(0.1)O_(3-δ) electrode at intermediate temperature
Abstract. Synthesis of electrolyte 8% Y2O3 Stabilized Zirconia (YSZ) and characterization of electrical conductivity with BSFC Ba0.5Sr0.5Fe0.9Cu0.1O3-δ (BSFC) electrode have been conducted. YSZ and BSFC were synthesized using sol-gel self-combustion. YSZ powder was calcined at 700℃ for 2 hours, then...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Journal of Applied Research and Technology |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs2.localhost:article/2331 |
| Acceso en línea: | https://jart.icat.unam.mx/index.php/jart/article/view/2331 |
| Access Level: | acceso abierto |
| Palabra clave: | Cole-Cole plot Debye relaxation electrolyte YSZ electrode impedance |
| Sumario: | Abstract. Synthesis of electrolyte 8% Y2O3 Stabilized Zirconia (YSZ) and characterization of electrical conductivity with BSFC Ba0.5Sr0.5Fe0.9Cu0.1O3-δ (BSFC) electrode have been conducted. YSZ and BSFC were synthesized using sol-gel self-combustion. YSZ powder was calcined at 700℃ for 2 hours, then pressed into a disk and sintered at 1550 ⁰C for 6 hours. While BSFC powder was calcined at 850 ℃ for 6 hours and sintered at 1100 ⁰C for 6 hours. X-ray diffraction (XRD) analysis shows that calcined powder of both YSZ and BSFC has cubic structure possessing space group (Fm-3m) and (Pm-3m), respectively. The lattice parameter of the YSZ a = 5.17 Å and the crystallite size Φ ≈ 11 nm were evaluated using the Debye-Scherer equation. A scanning electron microscope (SEM) shows that BSFC can adhere well to the surface of YSZ. The electrical behavior of the YSZ and half-cell BSFC||YSZ||BSFC measured at 150- 850 ⁰C shows the resistivity decreased with increasing temperature. The resistivity of BSFC||YSZ||BSFC is lower than YSZ due to the influence of BSFC. Cathode material BSFC is suitable for YSZ electrolytes. |
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