Preparation of arrays of long carbon nanotubes using catalyst structure

摘要

A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.

主权项

1. A structure, comprising:
a substrate comprising silicon, the substrate having a first side having a layer of silica and a second side; a buffer layer on said layer of silica of said substrate; a catalyst on said buffer layer; and a plurality of channels extending through both said substrate and said buffer layer that allow a gaseous carbon source to enter the substrate at the second side and flow through the channels to said catalyst on said buffer layer on the first side of said substrate, said channels defining a diameter in the range of from about 0.5 millimeters to about 1 millimeter, and said channels having a separation of about 2 to about 4 millimeters.