Engineering the Activity and Lifetime of Heterogeneous Catalysts for Carbon Nanotube Growth via Substrate Ion Beam Bombardment (Postprint)
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 2014
- Accession Number
- ADA610186
Entities
People
- A. E. Islam
- Benji Maruyama
- D. Huffman
- D. Zakharov
- Eric Stach
- G. Sargent
- M. Erford
- P. B. Amama
- P. Nikolaev
- S. Saber
- Sheldon Lee Semiatin
Organizations
- Air Force Research Laboratory