| 一种直接混合生成Al13硫酸盐晶体的简易方法(英文) |
| Facile Synthesis of Crystalline Al13 Sulfates via Direct Mixing Route |
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| 摘要: 将一定量的Na2SO4溶液直接加入在60～80 ℃温度下预处理过的Al13溶液中，然后室温陈化12 h，可简便快速地制备具有四面体形貌和纤维状形貌的Al13基硫酸盐晶体。所得晶体的SEM和OS图显示：用本文报道的方法合成的四面体形貌的硫酸盐晶体尺寸大小在150～200 μm，而通过滴定方法的却只有15～25 μm；纤维状的硫酸盐晶体的长径尺度分别是>1 000 μm和0.5～1 μm。对四面体形貌的Al13< |
| 关键词: Al13多聚阳离子 SEM 直接混合 四面体结晶 |
| 基金项目: |
| Abstract: Uniform tetrahedral and fiber-like crystalline sulfates of [AlO4Al12(OH)24(H2O)12]7+ polyoxocations were synthesized via a direct mixing and aging route. XRD patterns reveal that tetrahedral and fiber-like crystalline Al13 sulfates are cubic and monoclinic structure, respectively. SEM and Optical Scanning (OS) images show that the size of tetrahedral crystalline Al13 sulfates prepared via a direct mixing way is 150～200 μm, which is almost 10 times larger than that via traditional titration way (15～25 μm). The size of the fiber-like crystalline Al13 sulfates is 0.5～1 μm in diameter and up to 1 000 μm in length. A possible crystal growth mechanism for the tetrahedral crystalline Al13 sulfates is discussed. |
| Keywords: Al13 polyoxocations SEM direct mixing route tetrahedral crystalline |
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| 张渊明,杨发达,唐渝,李红.一种直接混合生成Al13硫酸盐晶体的简易方法(英文)[J].无机化学学报,2006,22(5):832-838. |
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