Redox properties of La0.6Sr0.4Co0.2Fe0.8O3-? and Ba0.5Sr0.5Co0.8Fe0.2O3-? cathodes and effect of infiltration by La0.8Sr0.2MnO3-?
| العنوان: | Redox properties of La0.6Sr0.4Co0.2Fe0.8O3-? and Ba0.5Sr0.5Co0.8Fe0.2O3-? cathodes and effect of infiltration by La0.8Sr0.2MnO3-? |
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| المؤلفون: | M. P. Carpanese, D. Clematis, S. Presto, M. Viviani, F. Deganello, L. F. Liotta, M. Delucchi, M. Panizza, G. Cerisola, A. Barbucci |
| المصدر: | 11TH INTERNATIONAL SYMPOSIUM ON ELECTROCHEMICAL IMPEDANCE ANALYSIS, pp. 51–51, Camogli (GE), 6-10/11/2017 info:cnr-pdr/source/autori:M. P. Carpanese, D. Clematis, S. Presto, M. Viviani, F. Deganello, L. F. Liotta, M. Delucchi, M. Panizza, G. Cerisola and A. Barbucci/congresso_nome:11TH INTERNATIONAL SYMPOSIUM ON ELECTROCHEMICAL IMPEDANCE ANALYSIS/congresso_luogo:Camogli (GE)/congresso_data:6-10%2F11%2F2017/anno:2017/pagina_da:51/pagina_a:51/intervallo_pagine:51–51 |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | EIS, SOFC, cathodes |
| الوصف: | In this study, state-of-art La0.6Sr0.4Co0.2Fe0.8O3-? (LSCF) and Ba0.5Sr0.5Co0.8Fe0.2O3-? (BSCF) peroskites were investigated as cathode materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs) and their behaviour under applied overpotential conditions was compared. The effect of wet infiltration by La0.8Sr0.2MnO3-? nano-sized discrete layer on performance and ageing effect was also analysed [1]. Electrochemical impedance spectroscopy (EIS) was applied to the cathode/Ce0.8Sm0.2O2-?- electrolyte system, to study the redox behaviour of the two different electrode phases. A decrease in polarization resistance for both LSCF- and BSCF-infiltrated electrodes was pointed out, compared to the reference ones, at open circuit voltage (OCV). Conversely, the application of cathodic overpotentials (-0.1 to -0.3 V) resulted in opposite effects on LSCF- and BSCF-based cathodes; calculation of the chemical capacitance highlighted a different response of the oxygen vacancies concentration to the applied voltage for the two perovskites compositions |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=cnr_________::4af127e772d064e006f67b286cbce68a https://publications.cnr.it/doc/378928 |
| رقم الأكسشن: | edsair.cnr...........4af127e772d064e006f67b286cbce68a |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |