The growth of CNTs on the multi-layered catalystes by the ethanol-based chemical vapor deposition

• Main Authors: Hui-min Lee, 李慧敏
• Other Authors: Dong-Hau Kuo
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/97nxz4

碩士 === 國立臺灣科技大學 === 高分子系 === 98 === ABSTRACT Carbon nanotubes has already been one of an important materials in carbon technology. Carbon nanotubes contains characters whish include low mass, high intensity, surface curvature, and tenacity, easy deflection and heat conduction, great surface area, and unique electric conductivity. Not only the application of Hydrogen storage materials, but the application of micro electron components for reaching the purpose of miniaturization and higher efficiency. In addition, it also use for the nanometer nanotube's field launch monitor, the sensory element, and so on. As the result shows, the best reaction temperature for the carbon nanotubes is 700℃-800℃ under the experiment conditions, which diameter is 10nm-30nm and the Ni catalyst is essential to the experiment. It will build better carbon nanotubes if collocate with the compound foundation plate Al and Au. Besides, the experiment use the temperature 700℃ and 850℃ for annealing that may grow the higher density nanometer nanotube. In this essay, we use the multi-layered catalysis conductive sea to synthesize nanometer nanotube, the synthetic method is Chemical Vapor Deposition and the carbon source is the ethyl alcohol. By changing multi-layer to facilitate the synthesis of metals, verifying the temperature while it growing ,and annealing catalyst to study the different conditions for the variation of nanometer nanotube during their growing. We make uses of the methods SEM,TEM, and Raman spectroscopy to analysis the growing carbon nanotubes.