高等学校化学学报

高等学校化学学报

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铈锆摩尔比对Ce0.3+xZr0.6-xY0.1O1.95系列储氧材料性能的影响

毛小波, 陈耀强, 钟俊波, 王健礼, 赵明, 龚茂初   

  1. 四川大学化学学院, 成都 610064
  • 收稿日期:2006-04-03 修回日期:1900-01-01 出版日期:2007-03-10 发布日期:2007-03-10
  • 通讯作者: 龚茂初

Effect of Cerium/Zirconium Molar Ratio on the Property of Series OSM Ce0.3+xZr0.6-xY0.1O1.95

MAO Xiao-Bo, CHEN Yao-Qiang, ZHONG Jun-Bo, WANG Jian-Li, ZHAO Ming, GONG Mao-Chu   

  1. College of Chemistry, Sichuan University, Chengdu 610064, China
  • Received:2006-04-03 Revised:1900-01-01 Online:2007-03-10 Published:2007-03-10
  • Contact: GONG Mao-Chu

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摘要： 研究了铈锆摩尔比对Ce0.3+xZr0.6-xY0.1O1.95系列储氧材料性能的影响, 得到了一些有意义的结果.

关键词: 储氧材料(OSM), 储氧量(OSC), 铈锆比[n(Ce)/n(Zr)], 铈原子利用率

Abstract: A series of materials Ce0.3+xZr0.6-xY0.1O1.95 were prepared by co-precipitation routine and the property of these materials was studied by means of oxygen storage capacity, temperature programming reduction, X-ray diffraction, transmission electronic microscope, and X-ray photoelectron spectroscopy. The results indicate that the materials with a low Ce/Zr molar ratio possess higher cerium atom utilization ratio, reducibility and thermal stability than the materials with a high Ce/Zr ratio, and Ce0.35Zr0.55Y0.1O1.95 possesses the best properties.

Key words: Oxygen storage material(OSM), Oxygen storage capacity(OSC), Cerium/zirconium molar ratio [n(Ce)/n(Zr)], Cerium atom utilization ratio

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