Synthesis of nano-rods using porous materials

Abstract

Synthesis, characterization and applications of carbon nano-rods comprise a significant aspect of the today's endeavors in nano-technology. Carbon nano-rods was prepared through a porous meterial as template. A carbon precusor is sucrose which it is very cheap. Sucrose was polymerized using hydrothermal. It is very quick, clean, convenient. The template-based method were synthesized an uniform carbon nanorod. We have proceeded an experiment for a highly yield. First, we have purchased an Anodic Aluminum Oxide(AAO) as a template. Sucrose was filled to the AAO template with two methods: (A) colloidal dispersion filling, (B) solvent evaporation. We take a FE-SEM image each side-section of the AAO after (A) the colloidal dispersion and (B) the solvent-evaporation method. This FE-SEM image indicated that (B) the solvent-evaporation method has better than (A) the colloidal dispersion. Beacuse (B) the solvent evaporation is improved capillary effect. This can easily infiltrate inner a pore of the AAO template. We have obtained the carbon nano-rods through (B) the solvent-evaporation method. Second, using mesoporous silica SBA-15 as a template, we have prepared the carbon nano-rods. To begin with, we have synthesized mesoporous silica SBA-15. and we have to remove a polymer inner pore of SBA-15. Because this polymer blocks penetration of sucrose. Two methods(calcination and solvent-evaporation) were proceeded to remove a polymer. We have measured a TGA data after every method. As a result, calcination and an IPA(isopropyl alcohol) solvent extraction method were removed a polymer in large great number. And then we obtain a bundle type of the carbon nano-rods.