Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA.
J Am Chem Soc. 2012 Jan 11;134(1):126-9. doi: 10.1021/ja209698f. Epub 2011 Dec 20.
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.
尽管付出了巨大努力,但开发可靠的方法来组装介孔金属有机骨架(mesoMOFs)仍然是一个挑战。在这项工作中,我们设计了一种协同模板系统,由表面活性剂(十六烷基三甲基溴化铵)和螯合剂(柠檬酸)组成,用于生成包含介孔和微孔相互连接的分级系统的介孔 MOF。表面活性剂分子形成胶束,而螯合剂桥接 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,当单独使用表面活性剂或螯合剂时,无法获得介孔 MOF。