Growth of Two-Dimensional Metal–Organic Framework Nanosheet Crystals on Graphite Substrates by Thermal Equilibrium Treatment in Acetic Acid Vapor

Kouhei Sakata, Soichiro Kashiyama, Gento Matsuo, Shinobu Uemura, Nobuo Kimizuka, Masashi Kunitake

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Large two-dimensional (2D) nanosheets of crystalline coordination frameworks were prepared on highly oriented pyrolytic graphite (HOPG) by re-crystallization induced by thermal equilibrium treatment in acetic acid vapor. The nanosheets comprised 5,10,15,20-tetrakis(4-carboxyphenyl)-porphyrin (H2TCPP) cross-linked by copper ions. We found that an acetic acid vapor environment dramatically decreased the activation energy and accelerated the recombination of coordination bonds between metal ions and carboxylate ligands in the H2TCPP-Cu frameworks. Ultimately, two-dimensional horizontal crystal growth was induced to form monomolecular sheets as the most thermodynamically stable crystal structure on a well-defined surface.

    Original languageEnglish
    Pages (from-to)259-263
    Number of pages5
    JournalChemNanoMat
    Volume1
    Issue number4
    DOIs
    Publication statusPublished - Aug 2015

    All Science Journal Classification (ASJC) codes

    • Biomaterials
    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Materials Chemistry

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