LaCoO3 – δ as the Material of an Oxygen Electrode for a Molten Carbonate Fuel Cell: I. Electrophysical Properties of Lithiated LaCoO3 – δ
- Авторлар: Vecherskii S.1, Konopel’ko M.1, Antonov B.1, Batalov N.1, Zvezdkin M.1, Zvezdkina I.1
-
Мекемелер:
- Institute of High-Temperature Electrochemistry, Ural Branch
- Шығарылым: Том 2018, № 2 (2018)
- Беттер: 149-154
- Бөлім: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172269
- DOI: https://doi.org/10.1134/S0036029518020209
- ID: 172269
Дәйексөз келтіру
Аннотация
Oxides LaCoO3 – δ + (z/2) Li2O (0 ≤ z ≤ 0.15) are synthesized to determine the boundaries of changing the electrophysical properties of LaCoO3 – δ due to its in situ lithiation in the (Li0.62K0.38)2CO3 eutectic melt. A perovskite-like solid solution (La1 – xLix)(LixCo1 – x)O3 – δ, where x = z/(z + 2), is found to form as a result of Li doping. The region of existence of the solution does not exceed 2x = 0.072. At a higher concentration of Li, LiCoO2 forms along with the perovskite-like phase. At the operating temperature of the carbonate fuel cell (T = 920 K), the single-phase samples have metallic conduction and positive thermopower. The electrical conductivity of the Li-doped samples decreases as compared to that of LaCoO3 – δ by no more than 1.5 times and varies from 3.2 × 104 to 3.8 × 104 S/m.
Негізгі сөздер
Авторлар туралы
S. Vecherskii
Institute of High-Temperature Electrochemistry, Ural Branch
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137
M. Konopel’ko
Institute of High-Temperature Electrochemistry, Ural Branch
Хат алмасуға жауапты Автор.
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137
B. Antonov
Institute of High-Temperature Electrochemistry, Ural Branch
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137
N. Batalov
Institute of High-Temperature Electrochemistry, Ural Branch
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137
M. Zvezdkin
Institute of High-Temperature Electrochemistry, Ural Branch
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137
I. Zvezdkina
Institute of High-Temperature Electrochemistry, Ural Branch
Email: m.konopelko@inbox.ru
Ресей, ul. Akademicheskaya 20, Yekaterinburg, 620137