0519 プロトン伝導体燃料極SOFCに関する研究(S49-2 SOFC燃料電池,S49 燃料電池技術)

概要

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Power generation experiments were investigated using anodes of Ni/BCY (BaCe_<0.8>Y_<0.2>O_<3-δ>) whose film thickness were 20μm and 40μm. Characteristics of the anode with proton conducting materials, such as BCY were investigated. The anode overpotential of the Ni/BCY increased with decreasing temperature from 900℃ to 700℃. The overpotential of the Ni/BCY (40μm) was lower than that of the Ni/BCY (20μm) under 3% humidified H_2 fuel (partial pressure of H_2O (P_<H2O>)=0.03, partial pressure of H_2 (P_<H2>)=0.97). The overpotential of the Ni/BCY (40μm) increased with humidity from 3% to 10%. On the other hand, the overpotential of the Ni/BCY (20μm) decreased with increasing humidity. However, the overpotentials of both Ni/BCYs increased when H_2 fuel was diluted by Ar.
社団法人日本機械学会の論文
2007-09-07