YAMADA, Atsuo; SAKA, Kazuyuki; UEHARA, Makiko; TAMINATO, Sou; KANNO, Ryoji; MAUVY, Fabrice; GRENIER, Jean-Claude

doi:10.1016/j.elecom.2010.09.026

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YAMADA, Atsuo
Department of Electronic Chemistry Interdisciplinary Graduate School of Science
Department of Chemical System Engineering

SAKA, Kazuyuki
Department of Electronic Chemistry Interdisciplinary Graduate School of Science

UEHARA, Makiko
Department of Electronic Chemistry Interdisciplinary Graduate School of Science

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Electrochemistry Communications. 2010, vol. 12, n° 12, p. 1690-1693

Elsevier

Resumen en inglés

Electrode-electrolyte hetero-epitaxial systems for solid oxide fuel cells (SOFCs) with two different configuration of Nd2NiO4+δ(110)//YSZ(100) and Nd2NiO4+δ(100)//YSZ(110) were successfully fabricated by pulsed laser deposition. Thin films of Nd2NiO4+δ approximately 20 nm thick were grown on a commercial single crystal of YSZ. The preferred two-dimensional diffusion paths of the oxide ions were perpendicular to the substrate for both configurations and showed oxygen reduction capability different from each other. This opens up new research direction focusing on the details of anisotropic catalytic activity of SOFC cathode depending on the crystalline surface.< Leer menos

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K2NiF4

Solid oxide fuel cell

Epitaxial film

Oxygen reduction

Anisotropy

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Anisotropic catalytic activity of the orientation controlled Nd<sub>2</sub>NiO<sub>4+δ</sub>/YSZ hetero-epitaxial system for SOFC cathode

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