Abstract Submitted to the    NANOTUBE'04 Conference:

Catalytic MCM-41 was applied as a template for the preparation of ordered nanotubes via thermal decomposition of acetylene at 700 0C. A bi-metallic catalyst using cobalt and molybdenum with 5-8 wt% was prepared by incipient wetness impregnation method on MCM-41 support as it has been found that these metals are able to produce good carbon nanotube in terms of yield and selectivity. Nitrogen adsorption isotherm and TEM images of the template and nanotube products clearly shows that the shape and pore size of nanotubes exactly reflect the pore size of the template. The result indicates that manipulating the template and thermal conditions during vapor deposition can control the pore size of CNTs. The present investigation is of great interest for synthesis of nanotubes with the defined pore size distribution.