洪庆红,宋宇鹏,贾爱平,普志英,罗孟飞.制备方法对CuO—Ce0.7Zr0.3O2催化剂的氧缺位和CO氧化活性的影响[J].分子催化,2008,(5):
制备方法对CuO—Ce0.7Zr0.3O2催化剂的氧缺位和CO氧化活性的影响
Effect of Preparation Method on Catalytic Activity of CO Oxidation over CuO-Ce0.7Zr0.3O2 Catalysts
  
DOI:
中文关键词:  CuO-Ce0.7Zr0.3O2催化剂  分散度  氧缺位  CO氧化
英文关键词:CuO-Ce0.7Zr0.3O2 catalysts,Dispersion,Oxygen vacancies,CO oxidation
基金项目:国家自然科学基金资助项目
洪庆红  宋宇鹏  贾爱平  普志英  罗孟飞
浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,金华职业技术学院化工与制药学院
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中文摘要:
      采用溶胶-凝胶法和溶胶-凝胶 浸渍法两种方法制备了CuO-Ce0.7Zr0.3O2催化剂,并对催化剂进行了XRD、Raman等表征,考察了催化剂的CO氧化性能.研究结果表明,溶胶-凝胶法制备的CuO-Ce0.7Zr0.3O2催化剂的CO氧化活性明显高于溶胶-凝胶 浸渍法制备的CuO/Ce0.7Zr0.3O2催化剂,CuO-Ce0.7Zr0.3O2催化剂容易形成氧缺位和表面高分散CuO的颗粒较大,从而提高催化活性.
英文摘要:
      CuO-Ce0.7Zr0.3O2 catalysts were prepared by two sol-gel methods and tested for CO oxidation.H2 temperature programmed reduction results revealed that the CuO particles are more finely dispersed in the catalyst prepared by sol-gel method.Also,Raman spectra of the catalysts indicated that more oxygen vacancies were formed in the catalyst prepared by sol-gel method than that by sol-gel impregnation method.These two facts contributed to the higher activity for the sol-gel The catalyst prepared by sol-gel method was easy to form oxygen vacancies and larger size finely dispersed CuO,which can enhance the catalytic activity.
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