| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Cell performance for a thin Gd-doped ceria (GDC) electrolyte was measured for using a 3 vol% H2O-containing H2 fuel. Open circuit voltage and maximum power density of the GDC cell at 600-800 °C showed the maximum values at Gd-doped 0.1 in GDC. The excess oxygen vacancy, which did not contribute to the oxide ion conductivity, interacted with the H2 fuel to form electrons in GDC electrolyte, resulting in the decreased performance of GDC cells. The addition of proton conductor BaCe0.8Y0.2O3 into anode was not effective to improve the cell performance. The ball-milling of La0.8Sr0.2Co0.8Fe0.2O3 cathode powder decreased the charge transfer resistance at the cathode and increased the power density of the fuel cell due to increase triple phase boundary.
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