التفاصيل البيبلوغرافية
| العنوان: |
Development of cobalt-free oxide (Sm0.5Sr0.5Fe0.8Cr0.2O3-δ) cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs) |
| المؤلفون: |
Iwan Susanto, Dianta Mustofa Kamal, Sidiq Ruswanto, Rahmat Subarkah, Fuad Zainuri, Sulaksana Permana, Johny Wahyuadi Soedarsono, Adi Subardi, Yen-Pei Fu |
| المصدر: |
Eastern-European Journal of Enterprise Technologies, 6(5(108)), 15-20, (2020-12-31) |
| بيانات النشر: |
Zenodo |
| سنة النشر: |
2020 |
| المجموعة: |
Zenodo |
| مصطلحات موضوعية: |
solid oxide fuel cells, cobalt-free cathode, perovskite structure, oxygen content, conductivity |
| الوصف: |
A cobalt-free perovskite oxide Sm 0.5 Sr 0.5 Fe 0.8 Cr 0.2 O 3-δ (SSFC) has been exploited as a novel cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The cathode model was synthesized with the addition of the chromium element in the B side of the composite metallic oxide system, which was then formed by the solid-state reaction method. The model system was further characterized in detail for getting the properties behavior. The solid-state reaction of the SSFC system was observed through thermal gravimetric analysis. Meanwhile, the structural properties were investigated by x-ray diffraction, and the weight loss was examined by the thermal gravimetric analysis as well. Furthermore, the thermal expansion coefficient was determined by the thermal-mechanical analysis, and the conductivity properties were tested by the thermal conductivity analysis. The result showed that the SSFC cathode demonstrated the crystalline structure based on the design with a perovskite phase. The oxygen content created on the model structure was obtained to be 2.98 after the calcination process. The average thermal expansion coefficient was achieved up to 5.0×10 -6 K -1 as the heating given up to 800°С. Moreover, the conductivity value reached from 2S∙cm -1 at 400°С and it increased to be a maximum of 7.5S∙cm -1 at 700°С. In addition, the presence of Cr 6+ cation valence coordinated with the oxygen anion could lead to generating a large concentration of oxygen vacancies on the cathode surface, facilitating the transport of the O 2− anion in the cathode system. Based on these results, the SSFC cathode has good properties as a composite system promising for IT-SOFCs application in the future |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| Relation: |
oai:zenodo.org:4876262 |
| DOI: |
10.15587/1729-4061.2020.217282 |
| الاتاحة: |
https://doi.org/10.15587/1729-4061.2020.217282 |
| Rights: |
info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/legalcode |
| رقم الانضمام: |
edsbas.44333763 |
| قاعدة البيانات: |
BASE |