| 水热法制备高纯超细CeO2-ZrO2复合氧化物 |
| Preparation of High Purity and Superfine CeO2-ZrO2 by Hydrothermal Method |
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| 摘要: |
| 关键词: 水热法 氧化铈 氧化锆 |
| 基金项目: |
| Abstract: Superfine composite powders of CeO2-ZrO2 (CZ) and CeO2-ZrO2-La2O3 (CZL) were prepared by hydrothermal method. The effects of pH、temperature and time for hydrothermal process on the performance of the resulting powders were studied. The optimized reaction parameters were on follows: the precursor′s pH≈9.0, hydrothermal temperature of 200 ℃ holding for 2 h. Thermal stable powders with average particle size smaller than 10 nm and specific surface area of 171 m2·g-1 were obtained. A BET specific surface area was still at 44 m2·g-1 after calcination at 1 000 ℃ for 6 hours. |
| Keywords: hydrothermal method ceria zirconia supercritical dryness |
| 投稿时间：2004-12-20 修订日期：2005-03-14 |
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| 郑育英,黄慧民,邓淑华,李大光,余双平.水热法制备高纯超细CeO2-ZrO2复合氧化物[J].无机化学学报,2005,21(8):1227-1230. |
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