Homogeneous decoration of zeolitic imidazolate framework-8 (ZIF-8) with core-shell structures on carbon nanotubes

Jong Tae Yoo, Su Hyun Lee, Chang Kee Lee, Chae Rin Kim, Tsuyohiko Fujigaya, Hyun Jin Park, Naotoshi Nakashima, Jin Kie Shim

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)

    Abstract

    Considerable attention has focused on the combination of carbon nanotubes (CNTs) and metal-organic frameworks (MOFs) since both nanomaterials have outstanding properties. We describe a method for the homogeneous decoration of a MOF (ZIF-8 was chosen) onto the surfaces of CNTs dispersed by polyvinylpyrrolidones (PVPs) in methanol, which was revealed by a scanning electron microscopic study. The homogeneous coating of the MOF on the CNTs, and nanostructures of the CNT-MOF were controlled by simply changing the concentrations of the MOFs. Furthermore, this method was also applicable to graphene and graphene oxide (GO). CO2 uptakes of the CNT-MOF and graphene-MOF were significantly improved as compared to the nonhomogeneous composites synthesized without the PVP functionalization, and a good reproducibility of the CO2 adsorption was confirmed by the cycling test.

    Original languageEnglish
    Pages (from-to)49614-49619
    Number of pages6
    JournalRSC Advances
    Volume4
    Issue number91
    DOIs
    Publication statusPublished - 2014

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)

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