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Single‐Walled Carbon‐Nanotube Dispersion with Electrostatically Tethered Nanoplatelets
Author(s) -
Sun Dazhi,
Everett W. Neil,
Chu ChienChia,
Sue HungJue
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200900531
Subject(s) - nanotube , exfoliation joint , carbon nanotube , sonication , dispersion (optics) , nanotechnology , materials science , colloid , chemical engineering , physics , optics , graphene , engineering
A method for physically pulling nanotube bundles apart by utilizing electrostatically tethered nanoplatelets to gather and concentrate sonication energy at the surface of nanotube aggregates is developed (see image). The nanoplatelets can be separated from the nanotubes by tuning the ionic strength of the medium. This colloidal approach obviates the need to drastically modify nanotube surface chemistry to achieve full exfoliation.