A facile preparation of nanocrystalline Mo2C from graphite or carbon nanotubes

Zeheng Yang, Peijun Cai, Liang Shi, Yunle Gu, Luyang Chen, Yitai Qian

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    Nanocrystalline Mo2C powders were successfully synthesized at 500 °C by reacting molybdenum chloride (MoCl5) with C (graphite or carbon nanotube) in metallic sodium medium. X-ray powder diffractometer (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscope (XPS) and surface area analyzer (BET method) were used to characterize the samples. Experiments reveal that the carbon source used for the carbide synthesis has a great effect on the particle size and the surface area of the samples. When micro-sized graphite was used as C source the obtained nanocrystalline Mo2C powder consists of particles of 30∼100 nm, with a surface area of 2.311 m2/g. When carbon nanotubes were used as C source, the as-synthesized Mo2C sample is composed of particles of 20∼50 nm, with a surface area of 23.458 m2/g, which is an order of magnitude larger than that of the carbide prepared from the graphite.

    Original languageEnglish
    Pages (from-to)29-32
    Number of pages4
    JournalJournal of Solid State Chemistry
    Volume179
    Issue number1
    DOIs
    Publication statusPublished - 2006 Jan 1

    Keywords

    • Chemical synthesis
    • Molybdenum carbide
    • Nanoparticle
    • Surface area
    • Transmission electron microscopy

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Inorganic Chemistry
    • Materials Chemistry

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