在CeIV-基于UIO-66的链接器化对结构影响的系统评估
Francesca Nerli1, Virginia Guiotto2, Valentina Crocellà2
1Dipartimento di Chimica e Chimica Industriale, Unità di Ricerca INSTM, Università di Pisa, Via G. Moruzzi 13, Pisa I-56124, Italy.
Inorganic chemistry
|September 22, 2025
概括
在金属有机框架 (MOF) 中,有机连接剂的逐步化会导致可预测的结构变化. 在Fx_UiO-66(Ce) 中增加含量会扩大单元细胞并改变键长,而无缺陷的化MOF则显示表面积减少.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 将纳入有机链接剂是调整金属有机框架 (MOF) 属性的常见策略.
- 缺乏对如何影响MOF结构调制的清晰理解.
研究的目的:
- 系统地研究阶段性化对基于Ce (IV) 的UiO-66 MOF架构的结构影响.
- 为了合成和描述一系列化UiO-66 (((Ce)) 材料.
主要方法:
- 使用酸调制合成Fx_UiO-66(Ce) 材料 (x=0-4).
- 通过NMR光谱学,热重量测量分析,N2吸附和同步X射线衍射与瑞特维尔德精细化进行表征.
主要成果:
- 化Fx_UiO-66(Ce) 材料没有缺陷,与非化模拟物不同.
- 增加化导致BET表面积减少.
- 单元细胞扩张,Ce-O键延长,芳香环扭曲和水协调到Ce (IV) 随着化增加而发生.
结论:
- 在UiO-66 (((Ce) 中对1,4-二碳酸连接物的逐步化会导致可预测的结构变化.
- 化会影响框架几何,缺陷度和孔隙特性.
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