Enhanced Li- and Na-storage in Sb-Graphene nanocomposite anodes

Yeongjae Yi, Hyun Woo Shim, Seung Deok Seo, Mushtaq Ahmad Dar, Dong Wan Kim

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)

    Abstract

    Antimony-graphene nanocomposite (Sb-GNP) was prepared from commercially available graphene nanoplatelets (GNPs) by a simple wet-chemical route at room temperature, and systematically investigated as an anode material for both lithium- and sodium-ion batteries (LIBs and NIBs). The microstructural features of Sb-GNP, and of pure Sb nanoparticles prepared without addition of GNPs, were characterized using X-ray diffraction, field-emission scanning electron microscopy, and high-resolution transmission electron microscopy. The successful formation of a nanocomposite structure was observed for Sb-GNP; the Sb nanoparticles are well dispersed and anchored on graphene nanoplatelets without significant aggregation of Sb nanoparticles, in contrast to the pure Sb nanoparticles. Furthermore, galvanostatic studies revealed that Sb-GNP displays better Li- and Na-storage performance than the pure Sb nanoparticles when utilized as an anode material. The enhanced electrochemical performance can be attributed to the effects of nanocomposite formation with GNPs.

    Original languageEnglish
    Pages (from-to)338-343
    Number of pages6
    JournalMaterials Research Bulletin
    Volume76
    DOIs
    Publication statusPublished - 2016 Apr 1

    Bibliographical note

    Publisher Copyright:
    © 2015 Elsevier Ltd. All rights reserved.

    Keywords

    • A. Composites
    • A. Nanostructure
    • B. Chemical synthesis
    • C. Electrochemical measurements
    • D. Energy storage

    ASJC Scopus subject areas

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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