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Ball-Milling Modification of Single-Walled Carbon Nanotubes: Purification, Cutting, and Functionalization

Authors

  • Noelia Rubio,

    1. Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
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  • Chiara Fabbro,

    1. Center of Excellence for Nanostructured Materials (CENMAT) & Italian, Interuniversity Consortium on Materials Science and Technology, (INSTM – Unit of Trieste), Dipartimento di Scienze Farmaceutiche, Università degli Studi di Trieste, Piazzale Europa 1, 34127 Trieste, Italy
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  • M. Antonia Herrero,

    1. Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
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  • Antonio de la Hoz,

    1. Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
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  • Moreno Meneghetti,

    1. Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy
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  • Jose L. G. Fierro,

    1. Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049, Madrid, Spain
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  • Maurizio Prato,

    1. Center of Excellence for Nanostructured Materials (CENMAT) & Italian, Interuniversity Consortium on Materials Science and Technology, (INSTM – Unit of Trieste), Dipartimento di Scienze Farmaceutiche, Università degli Studi di Trieste, Piazzale Europa 1, 34127 Trieste, Italy
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  • Ester Vázquez

    Corresponding author
    1. Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
    • Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain.
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Abstract

Single-walled carbon nanotubes (SWNTs) can be successfully cut with relatively homogeneous sizes using a planetary mill. The optimized conditions produce highly dispersible SWNTs that can be efficiently functionalized in a variety of synthetic ways. As clearly shown by Raman spectroscopy, the milling/cutting procedure compares very favorably with the most common way of purifying SWNTs, namely, treatment with strong oxidizing acids. Moreover a similar milling process can be used to functionalize and cut pristine SWNTs by one-step nitrene chemistry.

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