Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells
Аутори
Malešević, AleksandarRadojković, Aleksandar
Žunić, Milan
Dapčević, Aleksandra
Perać, Sanja
Branković, Zorica
Branković, Goran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Mixed oxides with the perovskite structure are known for their proton conducting ability at the temperatures above 500 °C. This characteristic makes them suitable for application as an electrolyte for intermediate-temperature solid oxide fuel cells. Doping of BaCeO3 with In3+ in place of Ce4+ leads to emergence of oxygen vacancies which take part in creation of proton defects. The characteristics of the BaCe1-xInxO3-δ were investigated in a wide range of In dopant concentrations (x = 0.05; 0.10; 0.15; 0.20; 0.25; 0.30; 0.35 and 0.40). All the samples were synthesized by a citric-nitric autocombustion method. The dense electrolytes were formed after sintering at 1300 °C for 5 h in air. X-ray powder diffraction analysis showed that powders with In content greater than 25 mol% contained In2O3 as a secondary phase. The highest total conductivity around 5×10–3 S•cm–1 was measured for the sample BaCe0.75In0.25O3-δ in the wet hydrogen atmosphere at 700 °C. After exposure to pure CO2 atmospher...e at 700 °C for 5 h, the samples were investigated by X-ray diffraction analysis. It was found that even 15 mol% In could completely suppress degradation of the electrolyte. Ni-
BaCe0.75In0.25O3-δ/BaCe0.75In0.25O3-δ/LSCF-BaCe0.75In0.25O3-δ fuel cell was tested in wet hydrogen atmosphere and power density output of 264 mW•cm–2 was measured at 700 °C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.
Кључне речи:
BaCeO3 / Proton conduction / Electrolyte / Electrical conductivity / Fuel cellИзвор:
6th Conference of the Serbian Society for Ceramic Materials, 2022, 57-Издавач:
- Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
Финансирање / пројекти:
- info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS (-)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Malešević, Aleksandar AU - Radojković, Aleksandar AU - Žunić, Milan AU - Dapčević, Aleksandra AU - Perać, Sanja AU - Branković, Zorica AU - Branković, Goran PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2212 AB - Mixed oxides with the perovskite structure are known for their proton conducting ability at the temperatures above 500 °C. This characteristic makes them suitable for application as an electrolyte for intermediate-temperature solid oxide fuel cells. Doping of BaCeO3 with In3+ in place of Ce4+ leads to emergence of oxygen vacancies which take part in creation of proton defects. The characteristics of the BaCe1-xInxO3-δ were investigated in a wide range of In dopant concentrations (x = 0.05; 0.10; 0.15; 0.20; 0.25; 0.30; 0.35 and 0.40). All the samples were synthesized by a citric-nitric autocombustion method. The dense electrolytes were formed after sintering at 1300 °C for 5 h in air. X-ray powder diffraction analysis showed that powders with In content greater than 25 mol% contained In2O3 as a secondary phase. The highest total conductivity around 5×10–3 S•cm–1 was measured for the sample BaCe0.75In0.25O3-δ in the wet hydrogen atmosphere at 700 °C. After exposure to pure CO2 atmosphere at 700 °C for 5 h, the samples were investigated by X-ray diffraction analysis. It was found that even 15 mol% In could completely suppress degradation of the electrolyte. Ni- BaCe0.75In0.25O3-δ/BaCe0.75In0.25O3-δ/LSCF-BaCe0.75In0.25O3-δ fuel cell was tested in wet hydrogen atmosphere and power density output of 264 mW•cm–2 was measured at 700 °C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment. PB - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia C3 - 6th Conference of the Serbian Society for Ceramic Materials T1 - Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells SP - 57 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2212 ER -
@conference{ author = "Malešević, Aleksandar and Radojković, Aleksandar and Žunić, Milan and Dapčević, Aleksandra and Perać, Sanja and Branković, Zorica and Branković, Goran", year = "2022", abstract = "Mixed oxides with the perovskite structure are known for their proton conducting ability at the temperatures above 500 °C. This characteristic makes them suitable for application as an electrolyte for intermediate-temperature solid oxide fuel cells. Doping of BaCeO3 with In3+ in place of Ce4+ leads to emergence of oxygen vacancies which take part in creation of proton defects. The characteristics of the BaCe1-xInxO3-δ were investigated in a wide range of In dopant concentrations (x = 0.05; 0.10; 0.15; 0.20; 0.25; 0.30; 0.35 and 0.40). All the samples were synthesized by a citric-nitric autocombustion method. The dense electrolytes were formed after sintering at 1300 °C for 5 h in air. X-ray powder diffraction analysis showed that powders with In content greater than 25 mol% contained In2O3 as a secondary phase. The highest total conductivity around 5×10–3 S•cm–1 was measured for the sample BaCe0.75In0.25O3-δ in the wet hydrogen atmosphere at 700 °C. After exposure to pure CO2 atmosphere at 700 °C for 5 h, the samples were investigated by X-ray diffraction analysis. It was found that even 15 mol% In could completely suppress degradation of the electrolyte. Ni- BaCe0.75In0.25O3-δ/BaCe0.75In0.25O3-δ/LSCF-BaCe0.75In0.25O3-δ fuel cell was tested in wet hydrogen atmosphere and power density output of 264 mW•cm–2 was measured at 700 °C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.", publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia", journal = "6th Conference of the Serbian Society for Ceramic Materials", title = "Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells", pages = "57", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2212" }
Malešević, A., Radojković, A., Žunić, M., Dapčević, A., Perać, S., Branković, Z.,& Branković, G.. (2022). Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells. in 6th Conference of the Serbian Society for Ceramic Materials Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 57. https://hdl.handle.net/21.15107/rcub_rimsi_2212
Malešević A, Radojković A, Žunić M, Dapčević A, Perać S, Branković Z, Branković G. Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells. in 6th Conference of the Serbian Society for Ceramic Materials. 2022;:57. https://hdl.handle.net/21.15107/rcub_rimsi_2212 .
Malešević, Aleksandar, Radojković, Aleksandar, Žunić, Milan, Dapčević, Aleksandra, Perać, Sanja, Branković, Zorica, Branković, Goran, "Stability and functionality of BaCe1-xInxO3-δ as a high temperature proton conducting electrolyte for solid oxide fuel cells" in 6th Conference of the Serbian Society for Ceramic Materials (2022):57, https://hdl.handle.net/21.15107/rcub_rimsi_2212 .