Citation:
WANG Jian-Qiang, SHEN Mei-Qing, WANG Jun, WANG Wu-Lin, JIA Li-Wei. Complete Oxidation of Ethanol and Thermal Stability of Ceria-BasedMaterials Modified by Doping Cu[J]. Acta Physico-Chimica Sinica,
;2010, 26(08): 2249-2254.
doi:
10.3866/PKU.WHXB20100641
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The complete oxidation of ethanol (COE) was studied over Cu0.1Ce0.9Ox and Cu0.1Ce0.6Zr0.3Ox catalysts prepared by the sol-gel method. Samples were characterized by X-ray powder diffraction (XRD), Brunauer-Emmett-Teller (BET) adsorption, Raman spectroscopy, hydrogen temperature-programmed reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR). Results show that for fresh samples, the activity of COE is found to be superior over Cu0.1Ce0.9Ox than over Cu0.1Ce0.6Zr0.3Ox whereas this is reversed for aged samples. The thermal stability improves after the introduction of Zr. Furthermore, the relationship between the active species and the activity for COE was investigated.
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