Single step process for the synthesis of carbon nanotubes and metal/alloy-filled multiwalled carbon nanotubes

  • M. M. Shaijumon1,

    Affiliated with

    • A. Leela Mohana Reddy1 and

      Affiliated with

      • S. Ramaprabhu1Email author

        Affiliated with

        Nanoscale Research Letters20072:75

        DOI: 10.1007/s11671-006-9033-5

        Received: 13 September 2006

        Accepted: 1 December 2006

        Published: 6 January 2007


        A single-step approach for the synthesis of multi-walled nanotubes (MWNT) filled with nanowires of Ni/ternary Zr based hydrogen storage alloy has been illustrated. We also demonstrate the generation of CO-free hydrogen by methane decomposition over alloy hydride catalyst. The present work also highlights the formation of single-walled nanotubes (SWNT) and MWNTs at varying process conditions. These carbon nanostructures have been characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), Energy dispersive X-ray analysis (EDX) and Raman spectroscopy. This new approach overcomes the existing multi-step process limitation, with possible impact on the development of future fuel cell, nano-battery and hydrogen sensor technologies.


        Carbon nanotubes Nanowires Encapsulation Hydrogen production Alloys Chemical vapour deposition




        We gratefully acknowledge financial support received from DRDO, RCI, NMRL and MHRD, Govt. of India for the present work.

        Authors’ Affiliations

        Department of Physics, Alternative Energy Technology Laboratory, Indian Institute of Technology Madras


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        © to the authors 2007