Cooperative Template-Directed Assembly of Mesoporous Metal-Organic Frameworks
Cooperative Template-Directed Assembly of Mesoporous Metal-Organic Frameworks
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DOI：
10.1021/ja209698f
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发表时间：
2012-01-11
影响因子：
15
通讯作者：
Zhou, Hong-Cai
中科院分区：
文献类型：
--
作者：
Sun, Lin-Bing;Li, Jian-Rong;Zhou, Hong-Cai
尽管付出了巨大的努力，但开发一种可靠的组装介孔金属有机框架（mesoMOFs）的方法仍然是一个挑战。在这项工作中，我们已经设计了一个合作的模板系统，包括表面活性剂（十六烷基三甲基溴化铵）和螯合剂（柠檬酸），用于生成mesoMOF包含与小孢子互连的中孔的分级系统。表面活性剂分子形成胶束，螯合剂桥接MOF和胶束，使自组装和晶体生长在协同模板的指导下进行。然而，当单独施加表面活性剂或螯合剂时，没有获得mesoMOF。
Despite great efforts, the development of a reliable way to assemble mesoporous metal-organic frameworks (mesoMOFs) remains a challenge. In this work, we have designed a cooperative template system, comprising a surfactant (cetyltrimethylammonium bromide) and a chelating agent (citric acid), for the generation of a mesoMOF containing a hierarchical system of mesopores interconnected with microspores. The surfactant molecules form micelles and the chelating agent bridges the MOF and the micelles, making self-assembly and crystal growth proceed under the direction of the cooperative template. However, when the surfactant or the chelating agent was applied individually, no mesoMOF was obtained.