| 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 |
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| 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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