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| 超细均分散稀土化合物胶体粒子制备 | |
| 引用本文： | 邓红梅 徐燕. 超细均分散稀土化合物胶体粒子制备[J]. 高等学校化学学报, 1993, 14(7): 889-892 |
| 作者姓名： | 邓红梅 徐燕 |
| 作者单位： | 复旦大学分析测试中心，复旦大学材料科学系，复旦大学化学系 上海 200433，上海 200433，上海 200433 |
| 摘 要： | 利用尿素分解法制得轻、中、重稀土化合物的超细均分散胶体粒子,详细探讨了浓度、pH值、陈化温度、陈化时间及共存阴离子等因素对制备过程的影响,获得了各种粒子的最佳制备条件. |
| 关 键 词： | 超细粒子 均分散粒子 稀土 |
The Preparation of Ultrafine Monodispersed Colloidal Particles of Rare Earth Compounds |
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| DENG Hong-Mei,XU Yan,KU Yih-Tong. The Preparation of Ultrafine Monodispersed Colloidal Particles of Rare Earth Compounds[J]. Chemical Research In Chinese Universities, 1993, 14(7): 889-892 | |
| Authors: | DENG Hong-Mei XU Yan KU Yih-Tong |
| Abstract: | A series of ultraf ine monodispersed colloidal particles of rare earth compounds were obtained by urea decomposition. The effects of various parameters, such as concentration, pH, aging temperature and time, and the nature of anions on the resulting precipitate particles were studied systematically. The optimal preparation conditions for the corresponding RE particles were concluded and discussed in detail. Powders obtained all had a relative large BET surface area, which are more than 29 m2/g. |
| Keywords: | Ultrafine particles Monodispersed colloidal particles RE compounds Urea decomposition method |
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