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Preparation and Oxygen Permeability of La-Sr-Co-Fe Oxide Thin Films by a Chemical Solution Deposition Process

机译:通过化学溶液沉积工艺制备La-Sr-Co-Fe氧化物薄膜的透氧性

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Oxygen-ionic and electronic conductive thin films with the composition of La_(0.6)Sr_(0.4)Co_(0.5)Fe_(0.5)O_(3-α)(LSCF) were prepared on a porous alumina substrate by a chemical solution deposition (CSD) process and their oxygen permeating flux densities were measured. Thickness of the LSCF layer on the substrate was about 0.4 μm. Oxygen flux density of the LSCF sample was found to be 0.6 μmol·cm~(-2)·s~(-1), however, time-dependent degradation of oxygen flux was observed. The CeO_2 barrier layer between the LSCF layer and the substrate was effective in order to improve time-dependent degradation of oxygen flux.
机译:通过化学溶液沉积在多孔氧化铝基质上制备具有LA_(0.6)SR_(0.4)CO_(0.5)FE_(0.5)O_(0.5)O_(0.5)O_(3-α)(LSCF)的组合物的氧离子和电子导电薄膜(测量CSD)工艺及其氧渗透助熔剂密度。基板上的LSCF层的厚度为约0.4μm。发现LSCF样品的氧气通量密度为0.6μmol·cm〜(-2)·s〜(-1),然而,观察到氧气通量的时间依赖性降解。 LSCF层和基板之间的CEO_2阻挡层是有效的,以改善氧气通量的时间依赖性降解。

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