J0601-1-5 プロトン伝導体添加燃料極SOFCの抵抗低減機構に関する研究(SOFC内の電極近傍現象)

概要

論文の詳細を見る
A proton-conducting anode Ni/GDC (Gd_2O_3-doped CeO_2)-BCY (BaCe_<0.8>Y_<0.2>O_<3-a) has been proposed for a high power density Solid-Oxide-Fuel-Cell. The most striking feature is that, using the anode Ni/GDC-BCY (90% : 10%), the polarized resistance which indicates an overpotential in anode is reduced to the half of that of the conventional anode Ni/GDC. As a result of our measurement, it is likely that the amount of adsorbed hydrogen on the surface of BCY is five times higher than that of GDC. It is clarified that adsorbed oxygen which is transferred as oxide ions through GDC particulates has large chance to react with the adsorbed hydrogen since much amount of hydrogen might be adsorbed on the surface of each BCY particulate distributed in the anode.
2009-09-12