METHOD FOR MANUFACTURING VERTICALLY ALIGNED CARBON NANOTUBES, AND ELECTROCHEMICAL SUPERCONDENSATORS USING THESE NANOTUBES AS ELECTRODES

摘要

Composite comprising vertically aligned carbon nanotubes (VACNT) on a substrate, characterized in that said composite comprises disorganized additional carbon deposited on the outer face of the nanotubes. This additional carbon is not amorphous but includes graphitic domains. This composite can be prepared by a CVD process in the presence of a catalyst on a metal substrate at atmospheric pressure. It can be used as an electrode in electronic and electrotechnical devices, such as supercapacitors.