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Showing 1 to 8 of 8 for “"LSGM"”.
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Fabrication and characterization of micro-tubular solid oxide fuel cells
… and magnesium-doped lanthanum gallate (LSGM), in which the single-phase perovskite LSGM region was determined. Yttria-stabilized zirconia (YSZ) and gadolinium doped ceria (CGO) electrolyte systems were also studied. Paste extrusion was identified as a suitable method for high-speed …
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Untersuchungen zum Phasendiagramm und der Kationendiffusion im System La 1-x Sr x Ga 1-y Mg y O 3-(x+y)/2 (LSGM)
… dense samples of the oxygen ion conductor LSGM (lanthanum gallate, doped with strontium on A- and magnesium on B-sites (La1-XSrXGa1-YMgYO3- (X+Y)/2)), were then prepared using the Pechini method [1]. Characterization by X-ray diffraction showed that all resulting samples, which are …
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Layered perovskites as cathode materials for IT-SOFC
… (GDC) and La₀.₉Sr₀.₁Ga₀.₈Mg₀.₂O₃-δ (LSGM-9182) as the electrolyte material. Both oxides crystallize in tetragonal P4/nmm symmetry. The structural and phase stability has been confirmed up to 800 °C by High temperature XRD studies. The coefficient of thermal expansion (CTE) and oxygen …
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Herstellung von dünnen Elektrolytschichten mittels Laserablation und Kathodenzerstäubung für Hochtemperatur-Brennstoffzellen
… films of the system La1-xSrxGa1-yMgyO3-1/2(x+y) (LSGM) are deposited using the PLD process. The films are analysed with regard to the crystal phases, element distribution, crystal growth, morphology and gas tightness. Electrochemical analyses give information about the power density of the fuel …
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Untersuchungen zum Einsatz neuer Werkstoffe für SOFC-Anwendungen
… strontium and magnesium doped lanthanum gallate (LSGM) materials with additional transition metal doping were selected and prepared via two different preparation methods. The optimum calcining conditions were determined using thermal analysis methods. The results of the structural analysis of the …
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Exploring Electrochemical Properties of Ti-Containing Oxides as Anodes for SOFCs
… ion conducting Sr- and Mg- co-doped LaGaO3 (LSGM) electrolyte. Smallest area specific resistance (ASR) of 1.1 cm2 was observed on the anode composition La2Ti2O7 + Fe + LSGM (1:1:1 vol. %) with 20 % porosity. Furthermore, gas phase K+/H+ exchange reaction was shown in K1.54Mg0.77Ti7.23O16 in …
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Ceramic-Based Anodes for Solid Oxide Fuel Cells
… and Mn-doped LaGaO3 (La0.8Sr0.2Ga0.5Mn0.5O3-δ, LSGMn) has been synthesized by both GNC (glycine nitrate combustion) and SSR (solid state reaction) methods. XRD examination shows that the synthesized LSGMn has a pure single primitive cubic phase. Four-probe DC conductivity characterization …
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Atomic scale diffusion in complex systems from first principles
Transport of point defects controls a variety of materials process such as precipitation, segregation of solutes to grain boundaries and surfaces, and macroscopic properties such as corrosion resistance and ionic conductivity. Therefore, a quantitative prediction of atomic scale transport is …