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Updated: May 13, 2026

Dry Oxidation and Vacuum Annealing Treatments for Tuning the Wetting Properties of Carbon Nanotube Arrays
Published on: April 15, 2013
Wetting behavior and activity of catalyst supports in carbon nanotube carpet growth
Placidus B Amama1, Shawn A Putnam, Andrew R Barron
1Soft Matter Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA. Placidus.Amama@wpafb.af.mil
Abstract:
A simple, reliable, and non-destructive approach based on contact angle measurements is described for predicting the activity of catalyst supports in carbon nanotube (CNT) carpet growth. The basic component of the surface free energy of different alumina supports - determined from the van Oss-Good-Chaudhury model and the Young-Dupré equation - was found to correlate with the activity of Fe catalyst during water-assisted CVD growth of CNT carpets.

