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- W2017162448 abstract "The influence of titanium doping level in Ba0.6Sr0.4Co1−yTiyO3−δ (BSCT) oxides on their phase structure, electrical conductivity, thermal expansion coefficient (TEC), and single-cell performance with BSCT cathodes has been investigated. The incorporation of Ti can lead to the phase transition of Ba0.6Sr0.4CoO3−δ from hexagonal to cubic structure. The solid solution limitation of Ti in Ba0.6Sr0.4Co1−yTiyO3−δ is 0.15–0.3 under 1100 °C. BSCT shows a small polaron conduction behavior and the electrical conductivity increases steadily in the testing temperature range (300–900 °C), leading to a relatively high conductivity at high temperatures. The electrical conductivity decreases with increasing Ti content. The addition of Ti deteriorates the cathode performance of BSCT slightly but decreases the TEC significantly. The TEC of BSCT is about 14 × 10−6 K−1, which results in a good physical compatibility of BSCT with Gd0.2Ce0.8O2−δ (GDC) electrolyte. BSCT also shows excellent thermal cyclic stability of electrical conductivity and good chemical stability with GDC. These properties make BSCT a promising cathode candidate for intermediate temperature solid oxide fuel cells (IT-SOFCs)." @default.
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- W2017162448 date "2009-01-01" @default.
- W2017162448 modified "2023-10-16" @default.
- W2017162448 title "Structural and electrochemical studies of Ba0.6Sr0.4Co1−yTiyO3−δ as a new cathode material for IT-SOFCs" @default.
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- W2017162448 doi "https://doi.org/10.1016/j.jpowsour.2008.10.007" @default.
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