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

Author

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE, Maruyama, B, Islam, A E, Nikolaev, P, Amama, P B, Saber, S, Zakharov, D, Huffman, D, Erford, M, Sargent, G, Semiatin, S L, Stach, E A, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE, Maruyama, B, Islam, A E, Nikolaev, P, Amama, P B, Saber, S, Zakharov, D, Huffman, D, Erford, M, Sargent, G, Semiatin, S L, and Stach, E A

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., Journal article published in Nano Letters, v14 p4997-5003, 2014.

Published
2014

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