对于兰化物分离的金属有机框架,同体基酸的尺寸选择性结晶
Xiang Zhao1, Matthew Wong, Chengyu Mao
1Department of Chemistry and Biochemistry, California State University , Long Beach, California 90840, United States.
Journal of the American Chemical Society
|August 29, 2014
概括
同人基甲酸金属有机框架 (MOFs) 根据离子半径选择性结晶化物. 这一发现为分离这些关键元素提供了一种新的,具有成本效益的方法.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
背景情况:
- 兰化物 (Ln) 是常常在自然混合物中发现的关键元素.
- 分离化物对于技术应用至关重要,但由于化学性质相似,难以实现.
- 现有的分离方法可能是复杂和昂贵的.
研究的目的:
- 开发一种新且具有成本效益的化物分离方法.
- 通过金属有机框架 (MOFs) 研究兰坦化物的选择性结晶.
- 探索MOF结晶对兰坦化离子半径的敏感性.
主要方法:
- 合成了两个系列的同体基甲酸金属有机框架 (MOFs).
- 第1类MOF使用酸盐连接物用于早期的兰他尼德 (La-Dy).
- 2型MOF采用了晚期兰坦化物 (Tb-Lu) 和 (Y) 的形式联体.
主要成果:
- 坎酸盐MOF的结晶显示出对兰化离子半径的高度敏感性.
- 在预先设计的MOF中实现了单个兰坦化元素的选择性结晶.
- 每种MOF类型内的协调环境对不同规模的兰坦化离子表现出明显的选择性.
结论:
- 同人基甲酸MOFs可以有效地区分和选择性地结晶兰坦化物.
- 这种基于MOF的方法提供了一个有前途的新策略,用于具有成本效益的化物分离.
- 这些发现为改善稀土元素净化工业流程铺平了道路.
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