| 高性能Ce0.35Zr0.55Y0.1O1.95稀土储氧材料的研究 |
| High Performance Ce0.35Zr0.55Y0.1O1.95 Rare Earth Oxygen Storage Material |
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| 摘要: |
| 关键词: 程序升温还原(H2-TPR) 储氧材料(OSM) 储氧量(OSC) 铈原子利用率 |
| 基金项目: |
| Abstract: The oxygen storage material (OSM) Ce0.35Zr0.55Y0.1O1.95 was prepared by co-precipitation routine and studied by means of TEM, XRD, XPS, BET, H2-TPR and oxygen storage capacity (OSC) measurements. The results indicated that this material possessed plenty of Ce3+ and lattice oxygen vacancy (percentage of Ce3+ was 59.6%) and high cerium atom utilization ratio (80.04%). The porous material was with an average BET surface area of 97 m2·g-1 and pore volume of 0.26 mL·g-1. After aged at 1 000 ℃ in air for 5 h, the sample still possessed plenty of Ce3+ and lattice oxygen vacancy (percentage of Ce3+ was 57.1%), and showed high cerium atom utilization ratio (78.25%), and high thermal stability. |
| Keywords: temperature program reduction (H2-TPR) oxygen storage material (OSM) oxygen storage capacity (OSC) cerium atom utilization ratio |
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| 毛小波,陈耀强,龚茂初.高性能Ce0.35Zr0.55Y0.1O1.95稀土储氧材料的研究[J].无机化学学报,2006,22(8):1521-1524. |
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