Synthesis and characterization of copper-manganese ferrites with composition Cu1–хMnхFe2O4 supported on activated carbon

作者: TM Petrova , NI Velinov , IG Genova , TS Tsoncheva , DG Kovacheva

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摘要: The present study is addressed to the synthesis of mixed copper-manganese ferrite catalysts Cu1–хMnхFe2O4 (x= 0; 0.2; 0.4; 0.6; 0.8; 1) supported on activated carbon from peach stones. The samples were characterized by X-ray diffraction, Mössbauer spectroscopy and methanol decomposition to CO and hydrogen was used as a catalytic test. The formation of ferrite catalysts with cubic and partially inverse spinel structure was established. Significant changes under the reaction medium of the ferrite materials with the formation of magnetite and carbide of Haag were registered. The presence of copper in the manganese ferrites improves the catalytic activity at the low-temperature and this tendency increases with the increase of copper content.

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