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Wet Catalyst-Support Films for Production of Vertically Aligned Carbon Nanotubes

N.T. Alvarez, C.E. Hamilton, C.L. Pint, A. Orbaek, J. Yao, A.L. Frosinini, A.R. Barron, J.M. Tour, R.H. Hauge, Alvin Orbaek White Orcid Logo

ACS Applied Materials & Interfaces, Volume: 2, Issue: 7, Pages: 1851 - 1856

Swansea University Author: Alvin Orbaek White Orcid Logo

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DOI (Published version): 10.1021/am100128m

Abstract

A procedure for vertically aligned carbon nanotube (VA-CNT) production has been developed through liquid-phase deposition of alumoxanes (aluminum oxide hydroxides, boehmite) as a catalyst support. Through a simple spin-coating of alumoxane nanoparticles, uniform centimer-square thin film surfaces we...

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Published in: ACS Applied Materials & Interfaces
ISSN: 1944-8244 1944-8252
Published: 2010
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URI: https://cronfa.swan.ac.uk/Record/cronfa32811
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Abstract: A procedure for vertically aligned carbon nanotube (VA-CNT) production has been developed through liquid-phase deposition of alumoxanes (aluminum oxide hydroxides, boehmite) as a catalyst support. Through a simple spin-coating of alumoxane nanoparticles, uniform centimer-square thin film surfaces were coated and used as supports for subsequent deposition of metal catalyst. Uniform VA-CNTs are observed to grow from this film following deposition of both conventional evaporated Fe catalyst, as well as premade Fe nanoparticles drop-dried from the liquid phase. The quality and uniformity of the VA-CNTs are comparable to growth from conventional evaporated layers of Al2O3. The combined use of alumoxane and Fe nanoparticles to coat surfaces represents an inexpensive and scalable approach to large-scale VA-CNT production that makes chemical vapor deposition significantly more competitive when compared to other CNT production techniques.
Keywords: alumoxane; catalyst support; chemical vapor deposition; vertically aligned carbon nanotubes
College: College of Engineering
Issue: 7
Start Page: 1851
End Page: 1856