Synthesis of doped ceria with mesoporous flowerlike morphology and its catalytic performance for CO oxidation
作者： Guoliang Xiao , Shuai Li , Hong Li , Liquan Chen , None
DOI: 10.1016/J.MICROMESO.2008.12.015
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摘要: Abstract Mesporous flowerlike ceria Ce0.9M0.1O2−δ (M = Y, La, Zr, Pr and Sn) have been synthesized successfully by a hydrothermal method. The impacts of doping on their physical properties are investigated means X-ray diffraction (XRD), scanning electron microscopy (SEM), nitrogen adsorption, Raman photoelectron spectroscopy (XPS). doped materials show relatively high stability against the grain growth at 800 °C under reducing oxidizing atmosphere. catalytic activities all for CO conversion quite (200 100 m2/g), open mesoporous structure (pore size ∼ 3.9 nm) nano-crystalline nature (grain size
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