Functionalization of graphene sheets through fullerene attachment

Yue Zhang, Liqiang Ren, Shiren Wang, Archis Marathe, Jharna Chaudhuri, Guigen Li

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

Fullerene-functionalized graphene shows a hierarchical structure, and is promising for many potential applications. In this paper, a new method is presented to synthesize such a novel nanostructure. Graphite flakes were intercalated to graphite oxide, and then functionalized with zero-dimensional fullerene nanocrystals. The resultant compounds were characterized by FT-IR spectroscopy, UV-Vis spectroscopy, atomic force microscopy, and transmission electron microscopy. The characterization results confirmed that fullerene crystals were successfully attached onto the single-layer graphene sheets and significantly facilitated the exfoliation of graphite to monolayer graphene. The fullerene grafted on the graphene surface serves as a space impediment to prevent the re-stacking of exfoliated graphene sheets. This attempt provides an effective route for large-scale exfoliation and functionalization of monolayer graphene, and is expected to significantly facilitate the application of graphene in the electronic devices, energy storage, and functional materials.

Original languageEnglish
Pages (from-to)5386-5391
Number of pages6
JournalJournal of Materials Chemistry
Volume21
Issue number14
DOIs
StatePublished - Apr 14 2011

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