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Engineering the activity and lifetime of heterogeneous catalysts for carbon nanotube growth via substrate ion beam bombardment.

Authors :
Islam AE
Nikolaev P
Amama PB
Saber S
Zakharov D
Huffman D
Erford M
Sargent G
Semiatin SL
Stach EA
Maruyama B
Source :
Nano letters [Nano Lett] 2014 Sep 10; Vol. 14 (9), pp. 4997-5003. Date of Electronic Publication: 2014 Aug 11.
Publication Year :
2014

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.

Details

Language :
English
ISSN :
1530-6992
Volume :
14
Issue :
9
Database :
MEDLINE
Journal :
Nano letters
Publication Type :
Academic Journal
Accession number :
25079258
Full Text :
https://doi.org/10.1021/nl501417h