Bhadra Biswa Nath, Shrestha Lok Kumar, Ma Renzhi, Hill Jonathan P, Yamauchi Yusuke, Ariga Katsuhiko
Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan.
Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba 305-8573, Ibaraki, Japan.
ACS Appl Mater Interfaces. 2024 Aug 7;16(31):41363-41370. doi: 10.1021/acsami.4c09747. Epub 2024 Jul 26.
There is a synergy between coordination chemistry and supramolecular chemistry that has led to the development of innovative hierarchical composites with diverse functionalities. Here, we present a novel approach for the synthesis and characterization of a metal-organic framework on fullerene (MOFOF) composites, achieved through the integration of coordination chemistry and supramolecular chemistry principles. The hierarchical nature of the MOFOF harnesses the inherent properties of metal-organic frameworks and fullerenes. The two-step synthesis procedure involves controlled assembly of fullerenes as tube-like nanostructures (fullerene nanotube: FNT), their surface functionalization, and the on-surface growth of the MOF (in this case, ZIF-67). The method permits the precise tuning of morphology, effective distribution of MOF-on-FNT, and tight compositional control. The materials were comprehensively structurally characterized using electron microscopy, spectroscopic techniques, and other methods to elucidate the unique features and interactions within the MOFOF composites. The main findings reveal that the novel synthesis and characterization of MOFOF composites demonstrate the successful integration of coordination chemistry and supramolecular chemistry for the designing and fabricating of advanced hierarchical composites with tailored properties, including micro- and mesopore channels, interfacial facets, and defect sites. These properties are expected to lead to numerous potential applications such as gas storage and separation, catalysis, sensing, energy storage, and environmental remediation. However, only the capability of acid vapor sensing was tested and is described here.
配位化学与超分子化学之间存在协同作用，这推动了具有多种功能的创新型分级复合材料的发展。在此，我们展示了一种合成和表征富勒烯负载金属有机框架（MOFOF）复合材料的新方法，该方法通过整合配位化学和超分子化学原理得以实现。MOFOF的分级特性利用了金属有机框架和富勒烯的固有性质。两步合成过程包括将富勒烯可控组装成管状纳米结构（富勒烯纳米管：FNT）、对其进行表面功能化以及在表面生长金属有机框架（在本案例中为ZIF-67）。该方法允许精确调节形态、使MOF在FNT上有效分布并实现紧密的成分控制。使用电子显微镜、光谱技术和其他方法对材料进行了全面的结构表征，以阐明MOFOF复合材料内部的独特特征和相互作用。主要研究结果表明，MOFOF复合材料的新颖合成与表征证明了配位化学和超分子化学在设计和制造具有定制性能的先进分级复合材料方面的成功整合，这些性能包括微孔和介孔通道、界面小面和缺陷位点。这些性能有望带来众多潜在应用，如气体存储与分离、催化、传感、能量存储和环境修复。然而，在此仅测试并描述了酸蒸汽传感能力。
