Electrically conductive superhydrophobic octadecylamine-functionalized multiwall carbon nanotube films Academic Article uri icon

abstract

  • Electrically conductive, superhydrophobic multiwall carbon nanotube (MWCNT) thin films were prepared by direct amination of MWCNTs with up to 14 wt.% of octadecylamine (ODA) by vacuum filtration method. The ODA-functionalized MWCNT films exhibit a high water contact angle of 165° and electrical conductivity of 860 S/m. The liquid-air-solid interface is directly observed from above the water droplet using an optical microscope. The observation indicates that the wettability state of the MWCNTs has changed from relatively hydrophilic to superhydrophobic state upon functionalization with ODA. The fundamental mechanisms responsible for the unusual combination of surface superhydrophobicity and high electrical conductivity of the MWCNT films are described and their implications are discussed. © 2012 Elsevier Ltd. All rights reserved.

author list (cited authors)

  • Yao, H., Chu, C., Sue, H., & Nishimura, R.

citation count

  • 33

publication date

  • March 2013

published in