在多变量中等孔晶体的光催化活性中链接分布的影响
Belén Lerma-Berlanga1, Carolina R Ganivet1, Neyvis Almora-Barrios1
1Functional Inorganic Materials Team, Instituto de Ciencia Molecular (ICMol), Universitat de València, Paterna, 46980 València, Spain.
Journal of the American Chemical Society
|January 12, 2021
概括
合成具有定制性质的多变体金属有机框架对于先进的应用至关重要. 这项研究优化了Zr6-MOF的单晶合成和链体交换,透露了通过链体分布对光催化活性的控制.
科学领域:
- 材料科学
- 纳米技术
- 化学学
背景情况:
- 金属有机框架 (MOF) 通过链接组合提供可调节的特性.
- Zr6-MOF是合成灵活的,但多晶形式阻碍了结构分析.
- 多变量MOF是定制材料功能的关键.
研究的目的:
- 优化UiO-68和UiO-68-TZDC的单晶合成.
- 通过溶剂辅助的链接交换来研究二进制MOF中的链接分布.
- 将链接器的排列与光催化性能联系起来.
主要方法:
- 对单晶的高通量合成优化.
- 溶剂辅助的链接交换反应
- 对连接器分布和光催化活性进行分析.
主要成果:
- 成功合成UiO-68和UiO-68-TZDC的单晶.
- 在二进制框架中对TZDC链接器分布 (统一与核心) 的控制.
- 光催化活性主要受到连接器分布的影响,而不是电子结构.
结论:
- 在Zr6-MOF中组合连接剂对于实现光敏感性和多孔性等所需特性至关重要.
- 可以精确控制多变量MOF中的连接器分布.
- 定制链接器安排提供了优化光催化性能的途径.
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