Jump to main content
Jump to site search


Experimental Determination of Diameter-Dependent Wettability of Carbon Nanotubes as Studied Using Atomic Force Microscopy

Abstract

Wettability of individual carbon nanotubes with <20-nm diameters was experimentally evaluated on the basis of the Wilhelmy method via atomic force microscopy to visualize the effect of nanometer-scale curvature of a solid surface on the solid–liquid and solid–vapor interface tensions. The experimental results showed the deviation of force owing to wetting for diameters <10 nm. Particularly for nanotubes with <4.5-nm diameter, the wettability tended to differ from its previously predicted behavior. The diameter-dependent wettability seen under 10 nm can be attributed to the interaction between the curved solid surface and the curved liquid adsorption layer formed on the CNT surface. In the scale where the radius of curvature is under 5 nm, the thermodynamics perspective may not be valid, and thus, an atomistic perspective must be considered.

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Aug 2018, accepted on 08 Oct 2018 and first published on 09 Oct 2018


Article type: Paper
DOI: 10.1039/C8CP05387A
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
  •   Request permissions

    Experimental Determination of Diameter-Dependent Wettability of Carbon Nanotubes as Studied Using Atomic Force Microscopy

    K. Imadate and K. Hirahara, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP05387A

Search articles by author

Spotlight

Advertisements