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The CuxO-Ce O2/Fe@CNSs, CuxO-Ce O2/MWCNTs-Co and CuxO-Ce O2/MWCNTs-Ni catalysts were prepared by the impregnation method and characterized by transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction, H2-temperature programmed reduction and N2 adsorption-desorption techniques. It was found that the Fe nanoparticles were encapsulated into the multi-layered carbon nanospheres(CNSs). However, the multi-wall carbon nanotubes(MWCNTS) were generated on the Co/Al2O3 and Ni/Al2O3 precursor. The addition of carbon nanomaterial as supports could improve structural properties and low-temperature activity of the Cu O-Ce O2 catalyst, and save the used amount of metal catalysts in the temperature range with high selectivity for CO oxidation. The copper-cerium oxides supported on carbon nanomaterial had good resistence to H2 O and CO2.
The CuxO-Ce O2 / Fe @ CNSs, CuxO-Ce O2 / MWCNTs-Co and CuxO-Ce O2 / MWCNTs-Ni catalysts were prepared by the impregnation method and characterized by transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction , H2-temperature programmed reduction and N2 adsorption-desorption techniques. It was found that the Fe nanoparticles were encapsulated into the multi-layered carbon nanospheres (CNSs). However, the MWCNTS was generated on the Co / The addition of carbon nanomaterial as supports could improve structural properties and low-temperature activity of the Cu O-Ce O2 catalyst, and save the amount of metal catalysts in the temperature range with high selectivity for CO oxidation The copper-cerium oxides supported on carbon nanomaterial had good resistence to H2 O and CO2.