Advanced Materials

Sustained Growth of Ultralong Carbon Nanotube Arrays for Fiber Spinning

Authors


  • This work was supported by the Laboratory Directed Research and Development program office of Los Alamos National Laboratory. We thank Dr. Yi Tu (CVD-First Nano company) for helpful discussions. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

Arrays of well-aligned, ca. 4.7 mm long carbon nanotubes (CNTs) are grown in a simple, safe, and cost-effective manner using an efficient Al2O3/Fe catalyst prepared by an ion-beam assisted deposition technique (see figure). Importantly, the as-synthesized CNT arrays with lengths ranging from 500 μm to 1.5 mm are conducive to spinning, and CNT fibers spun from such long CNT arrays show remarkably improved tensile strength.

original image

Ancillary