Functionalisation of the carbon nanofibres by plasma treatment

Vapour grown carbon nanofibres (VGCNF) were surface modified through cold oxygen plasma treatment under reduced pressure. The fibre morphology was studied by SEM (scanning electron microscopy) and HRTEM (high resolution transmission electron microscopy). The nanofibres surface functionalisation was...

Full description

Saved in:
Bibliographic Details
Published in:Thin solid films 2004-01, Vol.447 (Complete), p.181-186
Main Authors: Brandl, W., Marginean, G.
Format: Article
Language:English
Subjects:
Carbon nanofibres
Plasma treatment
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Vapour grown carbon nanofibres (VGCNF) were surface modified through cold oxygen plasma treatment under reduced pressure. The fibre morphology was studied by SEM (scanning electron microscopy) and HRTEM (high resolution transmission electron microscopy). The nanofibres surface functionalisation was elucidated by NaOH-titration, contact angle and surface energy measurements of the carbon nanofibres before and after plasma treatment. Oxygen plasma treatment introduced oxygen containing functional groups (hydroxylic, carbonylic and carboxylic groups) onto the fibre surfaces and also enhanced the fibre surface porosity (by etching) as well as the surface energy. There is yet to be mentioned that the fibre modifications have to occur only in the first few atomic layers. The plasma treatment can be proposed as a suitable method to change nanofibres surface from hydrophobic to hydrophilic.
ISSN:0040-6090
1879-2731
DOI:10.1016/S0040-6090(03)01077-0