【摘 要】
：
Mesoporous Ce0.5Zr0.5O2 mixed oxide with high specific surface area was synthesized under basic condition in the presence of non-ionic surfactant PEG-4000.The e
【机 构】
：
College of Chemistry and Chemical Engineering,Key Laboratory of Cataly sis and Materials Science of
论文部分内容阅读
Mesoporous Ce0.5Zr0.5O2 mixed oxide with high specific surface area was synthesized under basic condition in the presence of non-ionic surfactant PEG-4000.The effect of synthesis conditions, such as synthesis temperature and the molar ratio of PEG-4000/([Ce]+[Zr]), on specific surface area were investigated.The products were characterized by transmission electron microscopy, powder X-ray diffraction, and nitrogen adsorption-desorption measurements, respectively.The results showed that synthesis temperature and the molar ratio of PEG-4000/([Ce]+[Zr]) had great influence on specific surface area.Under the optimum synthesis conditions, the prepared Ce0.5Zr0.5O2 mixed oxide presented cubic fluorite-type structure and possessed high surface area of 148.6 m2·g-1 with wormlike pores.
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