Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 6 2 2010 06 01 Templated Growth of Carbon Nanotubes on Nickel Loaded Mesoporous MCM-41 and MCM-48 Molecular Sieves 88 96 3972 EN M. Masoumi School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran, I. R. Iran M. R. Mehrnia School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran, I. R. Iran M. M. Montazer-Rahmati School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran, I. R. Iran A. M. Rashidi Gas Division, Research Institute of Petroleum Industry (RIPI), Tehran, I. R. Iran Journal Article 2010 02 02 Chemical vapor deposition was employed to synthesize carbon nanotubes with Ni-loaded MCM-41 and MCM-48 as catalysts and acetylene as precursor at 750°C. Mesoporous Ni MCM-41 and Ni MCM-48 molecular sieves were synthesized by a hydrothermal method and were characterized by XRD and N2 adsorption isotherm. The catalytically synthesized carbon materials were characterized with Raman spectroscopy, N2 adsorption isotherm, SEM and TEM. The experimental results indicated that the deposited carbon materials by acetylene decomposition were slightly more in the Ni MCM-41 framework than in Ni MCM-48. Furthermore, the diameter distribution of the well-ordered grown multi wall carbon nanotubes has direct relation with their silicate frameworks. https://www.ijnnonline.net/article_3972_f2e84d98d6dc0c7acd56b40509355666.pdf