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In this study, Fe3O4-supported Cu and Ni catalysts are prepared through reduction of Cu–Ni (Ni1−xCuxFe2O4) ferrites. The Cu–Ni ferrites, synthesized using a solid–state reaction method, are reduced at temperatures from 240 °C to 500 °C in a H2 atmosphere. All ferrites are characterized with granular morphology and a smooth particle surface before reduction. For the CuFe2O4, Ni0.5Cu0.5Fe2O4 and NiFe...
In this study, various Cu-based spinel compounds, i.e., CuFe 2 O 4 , CuMn 2 O 4 , CuAl 2 O 4 and CuLa 2 O 4 , were fabricated by a solid-state reaction method. Reduction behaviors and morphological changes of these materials have been characterized by H 2 temperature-programmed reduction (H 2 -TPR), X-ray diffraction (XRD),...
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