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Showing 1 to 6 of 6 for “"La2NiO4"”.
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Oxygen permeation and thermo-chemical stability of oxygen separation membrane materials for the oxyfuel process
… of La0.58Sr0.4Co0.2Fe0.8O3-delta (LSCF58), La2NiO4+delta, Pr0.58Sr0.4Co0.2Fe0.8O3-delta (PSCF58) and Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF50) as membrane materials for the separation of O2 and N2 in the framework of the oxyfuel process with flue gas recycling. Annealing experiments were carried …
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Defect chemistry, transport properties and thermodynamic stability of acceptor doped and undeoped layered La 2 NiO 4
… by oxygen interstitial ions. In this work La2NiO4 based membranes was evaluated with respect to their transport properties, stability in different atmospheres and their aging. The structure of La2NiO4 may be described as an intergrowth of rocksalt La2O3 layers and perovskite LaNiO3 layers. …
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Thermodynamic stability of perovskite and lanthanum nickelate-type cathode materials for solid oxide fuel cells
… performance of SOFCs. Lanthanum nickelate, La2NiO4+δ (LNO), is a mixed ionic and electronic conductor that has competitive surface oxygen exchange and transport properties and excellent electrical conductivity compared to perovskite-type oxides. This makes it an excellent candidate for solid …
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Fundamental studies of perovskite related oxide thin films for oxygen electrocatalysis at intermediate temperatures
… surface exchange kinetics of a-axis-oriented La2NiO4+[delta] (LNO) thin films increases with decreasing film thickness. Increasing volumetric strains in the LNO films at elevated temperatures are correlated with increasing surface exchange kinetics and decreasing film thickness. Volumetric …
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Impurities in Antiferromagnetic Transition-metal Oxides – Symmetry and Optical Transitions
… These results are compared with those of La2NiO4, La2CuO4, La2-xSrxNiO4, and La2-xSrxCuO4. to elucidate the mechanisms behind the symmetry breaking phenomena in the Sr doped systems. As it turns out, indeed, the x2 – y2 orbital in these materials plays a critical role in spatial charge …
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Structure prediction, growth, and characterization of perovskites
… BaxSr1−xTiO3, and layered perovskite-relative La2NiO4, in which there occur peaks (reflections) that correspond to neither the film nor the substrate crystal structure, and argue that these peaks are the result of multiple diffraction from both the film and substrate. I describe a simple method …