Type

Journal Article

Authors

Iouri Gounko
Ian Edward O'Connor
Umar Khan
Jonathan Coleman

Subjects

Physics

Topics
nanoscience materials films electrical properties single walled nanotubes nanotubes raman spectroscopy mechanical properties phase separation

The preparation of hybrid films of carbon nanotubes and nanographite/graphene with excellent mechanical and electrical properties (2010)

Abstract We have prepared mixed dispersions of single walled nanotubes and nano-graphite / graphene in the solvent N-methyl pyrrolidone. This allows the deposition of hybrid films by vacuum filtration. Scanning electron microscopy shows the components to be well mixed with little sign of phase separation. Although dominated by nano-graphite, Raman spectroscopy shows the presence of some graphene flakes with <5 layers. Mechanical measurements show the hybrids to be stronger and stiffer than nanotube or graphene-only films, reaching strengths and stiffnesses of 38 MPa and 4.8 GPa respectively for the sample with 20wt% graphene. In addition the hybrid films were more electrically conductive than the nanotube-only or graphitic films reaching a DC conductivity of 2?104 S/m for the 70wt% nano-graphite / graphene sample.
Collections Ireland -> Trinity College Dublin -> RSS Feeds
Ireland -> Trinity College Dublin -> School of Physics
Ireland -> Trinity College Dublin -> Physics (Scholarly Publications)
Ireland -> Trinity College Dublin -> RSS Feeds
Ireland -> Trinity College Dublin -> Physics

Full list of authors on original publication

Iouri Gounko, Ian Edward O'Connor, Umar Khan, Jonathan Coleman

Experts in our system

1
Iouri Gounko
Trinity College Dublin
Total Publications: 71
 
2
Umar Khan
Trinity College Dublin
Total Publications: 37
 
3
Jonathan Coleman
Trinity College Dublin
Total Publications: 217