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Effect of silicon on the formation of graphitic polyhedra and balloon-like particles

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Abstract

We conducted laser vaporization of graphite and graphite containing 1 at. % silicon in Ar gas atmosphere. Comparison of the products from the laser vaporization indicated that the coexistence of Si promoted graphitization in grown carbon particles of 90–1500 nm. Polyhedral graphite (PG) particles and balloon-like carbon (BC) particles with shells of graphitic layers were grown under control of Ar gas pressures of 0.1–0.7 MPa. We discuss possible roles of Si in graphitic structure growth and the formation mechanisms of the PG and BC particles.

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Authors and Affiliations

  1. Department of Chemistry for Materials, Mie University, 1577 Kurimamachiya, Tsu, Mie, 514-8507, Japan

    F. Kokai, N. Takakuwa & A. Koshio

  2. Institute of Research and Innovation, 201 Takada, Kashiwa, Chiba, 277-0861, Japan

    K. Takahashi

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  1. F. Kokai
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  2. N. Takakuwa
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  3. A. Koshio
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  4. K. Takahashi
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Correspondence to F. Kokai.

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PACS

81.16.Mk; 61.46.Df; 68.37.Lp

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Kokai, F., Takakuwa, N., Koshio, A. et al. Effect of silicon on the formation of graphitic polyhedra and balloon-like particles. Appl. Phys. A 84, 391–394 (2006). https://doi.org/10.1007/s00339-006-3638-5

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  • DOI: https://doi.org/10.1007/s00339-006-3638-5

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