Masakazu Hishinuma

TL;DR: In this article, a three-dimensional mathematical model for a planar SOFC was constructed and the concentrations of the chemical species, the temperature distribution, the potential distribution, and the current density were calculated using a single unit model with double channels of co-flow or counter-flow pattern.

TL;DR: In this article, an anode-supported planar SOFC with double channels was modeled for a counter-flow pattern, and the concentration polarization at the anode was estimated.

TL;DR: In this paper, a defect model was proposed to elucidate the oxygen partial pressure dependence of the measured conductivity and the reported oxygen nonstoichiometry, which was successfully described by a diffusion model with consideration of partial control by surface reaction.

TL;DR: In this article, the authors measured the tracer diffusion coefficient of strontium-doped lanthanum manganites, La 1 − xSrxMnO3 ± δ (x = 0.05, 0.10,0.15 and 0.20) as a function of composition, temperature and oxygen partial pressure.

TL;DR: In this article, the electrical conductivity and chemical diffusion coefficient of Sr-doped lanthanum chromites were measured as a function of oxygen partial pressure (P o 2 ) and temperature, and the results were discussed in light of defect chemistry.