Thermal properties of (Gd0.6Sr0.4)0.99Fe1-xCoxO3-? cathodes for intermediate temperature solid oxide fuel cells
نویسندگان
چکیده
A new series of cobalt-based perovskite (Gd0.6Sr0.4)0.99Fe1-xCoxO3-? (GSFC-x, x = 0.00, 0.05, 0.10, 0.15, 0.20 and 0.25) cathodes to aid in the development intermediate temperature solid oxide fuel cells are reported. All perovskites showed coexistence cubic orthorhombic phases. To determine their suitability, thermal properties dependence on cobalt content were investigated via dilatometry, thermogravimetry differential scanning calorimetry. GSFC-x exhibited promising activity oxygen reduction reaction ion transport from a comparable study. The expansion coefficient rich-cobalt samples more compatible value common electrolyte than other similar cathodes. By varying Co doping, compromises made between electrical conductivity. Furthermore, phase stability was observed.
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ژورنال
عنوان ژورنال: Ceramics International
سال: 2021
ISSN: ['0272-8842', '1873-3956']
DOI: https://doi.org/10.1016/j.ceramint.2020.10.121