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- W2000776449 abstract "CoMo hydrodesulfurization catalysts (HDS) supported on mixed ZrO2-Al2O3 and ZrO2-SiO2 oxides have been prepared via a two-step impregnation using the incipient wetness method. The SBET method, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were used for characterization of the samples. Increasing the ZrO2 content decreases the surface areas and the pore volumes of supported CoMo catalysts. The effect of Zr content on the dispersion of Mo and Co species is more pronounced in the case of CoMo/ZrO2-SiO2 samples; a higher dispersion corresponds to a higher ZrO2 content. The sulfidation of molybdenum forms MoS2. A higher degree of sulfidation of molybdenum is observed for CoMo catalysts supported on ZrO2-Al2O3. A comparison between surface properties and catalytic activity behaviors of CoMo catalysts in HDS of thiophene is presented." @default.
- W2000776449 created "2016-06-24" @default.
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- W2000776449 date "2003-01-01" @default.
- W2000776449 modified "2023-10-07" @default.
- W2000776449 title "XPS characterization of zirconium-promoted CoMo hydrodesulfurization catalysts" @default.
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- W2000776449 doi "https://doi.org/10.1016/s0926-860x(02)00385-x" @default.
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