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Mn1Ce1 and Mn0.9Co0.1Ce1 complex oxides were prepared by co-precipitation in hydrothermal conditions and their physicochemical properties were characterized with N2 adsorption, XRD, Raman, and SEM. The complex oxides show enough stability and catalytic activity for oxidative degradation of 4,4'-Dibromobiphenyl in sub-critical water. Mn0.9Co0.1Ce1 has higher activity than Mn1Ce1, indicating doping...
A series of CuO-CeO2 catalysts doped with transition metal oxides were prepared by co-precipitation method for selective CO oxidation and the effects of the additives on the catalytic performance were examined by H2-TPR, in-situ DRIFTS techniques. The results showed that the main CO adsorption site on CuO-CeO2 series catalysts was Cu+ species. The catalytic activity at lower temperatures was related...
The authors present a solvothermal process to fabricate hollow CeO2 microspheres. Polyvinyl pyrrolidone is employed as polymer surfactant to assist the forming process of hollow structured microspheres in the solution. The as-prepared samples are characterised through X-ray diffraction, transmission electron microscopy and scanning electron microscopy, and the catalytic activity is investigated through...
Catalytic systems based on activated carbon(AC) modified by manganese oxide were investigated for the hydrolysis of carbonyl sulfide (COS) in a fixed-bed reactor. The catalysts were prepared by immersion method. Effect of preparation conditions on catalytic activity were studied, including calcination temperature, content of active component, drying temperature after immersing alkali and addition...
Single crystalline Ce(OH)CO3 and CeO2 with spindle-like structures were synthesised by a facile hydrothermal synthesis method. Then the effect of reaction time and concentration of cerium precursor on the formation and morphologies of Ce(OH)CO3 and CeO2 were further investigated. The products were characterised by X-ray powder diffraction, transmission electron microscopy and scanning electron microscopy...
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