Application of Cerium-Zirconium Solid Solution Prepared by a Microwave-Assisted Method to CO Low-Temperature Oxidation

作者：Yang Zhiqiang^*; Mao Dongsen; Zhu Huilin; Lu Guanzhong

来源：Chinese Journal of Catalysis, 2009, 30(10): 997-1000.

• cerium-zirconium solid solution
• microwave
• heating reflux
• carbon monoxide
• low-temperature oxidation
• copper oxide catalyst

Three different Ce(0.6)Zr(0.4)O(2) solid solutions were prepared by the co-precipitation method combined with room temperature aging, conventional heating reflux, and microwave-assisted heating reflux and used as the supports to prepare CuO catalysts by an impregnation method. The textural and reductive properties of the Ce(0.6)Zr(0.4)O(2) supports and CuO/Ce(0.6)Zr(0.4)O(2) catalysts were characterized by N(2) adsorption, X-ray diffraction, and temperature-programmed reduction by hydrogen. In addition, the catalytic activity of the catalysts for CO low-temperature oxidation was tested. The results showed that the support prepared by the microwave-assisted method has the largest surface area and pore volume (170.8 m(2)/g and 0.408 cm(3)/g, respectively), and the CuO species loaded exhibited good dispersion and reducibility, which resulted in a high catalytic activity of the corresponding CuO/Ce(0.6)Zr(0.4)O(2) catalyst for CO low-temperature oxidation.

• 出版日期2009-10
• 单位上海应用技术大学