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

JongTae Yoo, SuHyun Lee, Chang Kee Lee, ChaeRin Kim, Tsuyohiko Fujigaya, Hyun Jin Park, Naotoshi Nakashima, Jin Kie Shim

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26 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 Jan 1

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ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

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