Table of Contents
ISRN Materials Science
Volume 2013, Article ID 732974, 4 pages
Research Article

Synthesis of Co Filled Carbon Nanotubes by In Situ Reduction of CoCl2 Filled Nanotubes by NaBH4

Amity Institute of Nanotechnology, Amity University, Sector 125, Noida, 201313 UP, India

Received 13 May 2013; Accepted 13 June 2013

Academic Editors: V. Baranauskas and S. X. Dou

Copyright © 2013 J. Mittal. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An alternative process of filling the multiwall nanotubes (MWCNTs) with cobalt metal was developed. Empty core of nanotubes was first filled with CoCl2 by stirring with CoCl2 and alcohol at room temperature for six hours. CoCl2 filling inside MWCNTs was then converted into Co after treating with NaBH4 at room temperature. High resolution transmission electron microscope (HRTEM) studies showed the filling of the CoCl2 and Co inside the nanotubes before and after the treatment. EDX studies show the nonexistence of chlorine after the reduction with NaBH4. Amount of filling was also reduced after the treatment. Paper describes the possible mechanism of filling CoCl2 inside nanotube and its reduction by NaBH4.