Accession Number:

ADA610186

Title:

Engineering the Activity and Lifetime of Heterogeneous Catalysts for Carbon Nanotube Growth via Substrate Ion Beam Bombardment (Postprint)

Descriptive Note:

Interim rept. 5 Aug 2010-18 Jul 2014

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE

Report Date:

2014-07-31

Pagination or Media Count:

11.0

Abstract:

We demonstrate that argon ion bombardment of single crystal sapphire leads to the creation of substrates that support the growth of vertically aligned carbon nanotubes from iron catalysts with a density, height, and quality equivalent to those grown on conventional, disordered alumina supports. We quantify the evolution of the catalyst using a range of surface characterization techniques and demonstrate the ability to engineer and pattern the catalyst support through control of ion beam bombardment parameters.

Subject Categories:

  • Physical Chemistry
  • Refractory Fibers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE