Effect of Co Doping on the Properties of Ce0.75Zr0.25O2 Nanocatalyst

Abstract

5wt% Co deposited on a support catalyst Ce0.75Zr0.25O2 mixed oxide were prepared by combination of microemulsion and deposition-precipitation method followed by calcinations at temperature 500°C. The microemulsion component comprise of cetyl trimetyl ammonium-bromide (CTAB), 1-butanol, n-octane and aqueous solution. Sodium hydroxide (NaOH) was used as precipitation precursor for the preparation of water-in-oil microemulsions method. The particles were characterized by X-ray diffraction (XRD), N2 adsorption-desorption analysis and Field Emission Scanning Electron Microscopy (FESEM). The results showed the preparation method has significant influences on the textural and structure properties of Co/Ce0.75Zr0.25O2. The formation of Co/Ce0.75Zr0.25O2 inhibit the better performance based on the particles size, specific surface area and particle distribution of cobalt into Ce0.75Zr0.25O2.

Surface Structure Study of CeZrO2 Nanocatalyst Doped with Different Transition Metals

“…Preparation of CeZrO 2 nanoparticles, CeZrO 2 mixed oxide was prepared by microemulsion method. This method was adapted from Nor et al [12]. In order to prepare the CeZrO 2 nanocatalyst, two microemulsion solutions was prepared and assigned as microemulsion A and microemulsion B.…”