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Perovskite-type oxide La 0.5 Sr 0.5 MnO 3−δ catalysts were fabricated hydrothermally at 220, 240, 250 or 270°C for 50h (denoted as LSMO-220, LSMO-240, LSMO-250, and LSMO-270, respectively). We characterized the materials by a number of analytical techniques. It was found that the La 0.5 Sr 0.5 MnO 3−δ samples are single-crystalline cubic perovskite-type...
The La2NiO4-zeolite membrane was prepared by means of in situ hydrothermal synthesis. Techniques such as XRD, SEM-EDX, and BET were used to acquire information as related to the structure, morphology and the pore size distribution of the membrane. At room temperature, we observed a H2/CH4 separation factor of 9.2, considerably higher than the Knudsen diffusion value. With the simultaneous separation...
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