Abstract
Highly dispersed solid solutions Mn0.20Ce0.80O2–δ and M0.05Mn0.15Ce0.80О2–δ, where M = Cu, Bi, were prepared by coprecipitation followed by heat treatment. The materials were characterized by X-ray diffraction analysis, energy-dispersive X-ray spectroscopy, low-temperature nitrogen adsorption, transmission electron microscopy, and gas chromatography. The compounds prepared exhibit high activity in complete oxidation of methane. The solid solutions show promise as palladium supports. The 0.5% PdО/Mn0.20Ce0.80O2–δ and 0.5% PdО/Cu0.05Mn0.15Ce0.80O2–δ samples synthesized surpass in the catalytic activity the reference catalyst 0.5 PdО/γ-Al2O3. Thus, it is appropriate to use the complex oxide formulations as supports of the active component.
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