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La-doped ceria (Ce0.6La0.4O1.8 [LDC]) has been reported to be an effective buffer layer material for preventing the chemical reaction between Sr- and Mg-doped LaGaO3 (LSGM) electrolyte and Ni-based anode during sintering. However, it seems difficult to achieve a high power density on the cell using LDC buffer layer because of its low sintering and electrical conducting properties. In this study, effects...
An electrode design with no use of three-phase boundary was investigated using palladium electrode. The hydrogen evolution rate of the palladium electrode cell using SrZr0.9Y0.1O3 − α electrolyte followed Faraday’s law up to 180 mA cm−2, and the anode and cathode overpotentials were significantly lower than those of a platinum electrode cell, suggesting that the palladium electrode is effective to...
Hydrogen pumps using high-temperature proton conductors have been examined as a candidate means of hydrogen separation from syngas. Durability to CO2 is a main concern for the alkali-earth-containing perovskites and was tested for a few typical compositions. Ce-excluded and cerate–zirconate solid solution electrolytes, SrZr0.9Y0.1O3-α, and BaCe0.6Zr0.3Nd0.1O3-α were stable in CO2-containing atmospheres,...
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