Ruddlesden‐Popper‐Type Epitaxial Film as Oxygen Electrode for Solid‐Oxide Fuel Cells
Ruddlesden‐Popper‐Type Epitaxial Film as Oxygen Electrode for Solid‐Oxide Fuel Cells
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DOI：
10.1002/adma.200801199
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发表时间：
2008-11
影响因子：
29.4
通讯作者：
A. Yamada;Yoshitaka Suzuki;K. Saka;M. Uehara;Daisuke Mori;R. Kanno;T. Kiguchi;F. Mauvy;J. Grenier
中科院分区：
文献类型：
--
作者：
A. Yamada;Yoshitaka Suzuki;K. Saka;M. Uehara;Daisuke Mori;R. Kanno;T. Kiguchi;F. Mauvy;J. Grenier
The ability of solid oxide fuel cells (SOFC) to utilize commonly available fuels with high efficiency at 650–1000 8 C promises an effective and early reduction in carbon dioxide emissions. Decreasing the operating temperature of SOFC is an important technical goal toward down-sizing, frequent operation stop, and the use of low-cost flexible metal interconnectors. Improvement of the cell efficiency is largely dependent on decreasing the polarization at the cathode, because the cathodic overvoltage for oxygen reduction is significantly larger than the other various internal cell resistances. The cathode of SOFC must be a good catalyst performing three functions: i) breaking the covalent bond of the O 2 molecule, ii) facile transport of electrons from the external circuit to the reactive point for reduction of the oxidant, and iii) delivery of oxide ions to the electrolyte. Schematic drawings of the steps included in the oxygen reduction process
