Selective Attachment of Gold Nanoparticles to Nitrogen-Doped Carbon Nanotubes

Gold nanoparticles were selectively attached to chemically functionalized surface sites on nitrogen-doped carbon (CN x ) nanotubes. A cationic polyelectrolyte was adsorbed on the surface of the nanotubes by electrostatic interaction between carboxyl groups on the chemically oxidized nanotube surface...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2003-03, Vol.3 (3), p.275-277
Main Authors: Jiang, Kuiyang, Eitan, Ami, Schadler, Linda S, Ajayan, Pulickel M, Siegel, Richard W, Grobert, Nicole, Mayne, Martine, Reyes-Reyes, Marisol, Terrones, Humberto, Terrones, Mauricio
Format: Article
Language:English
Subjects:
Applied sciences
Chemical Sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Nanoscale materials and structures: fabrication and characterization
or physical chemistry
Physics
Theoretical and
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:Gold nanoparticles were selectively attached to chemically functionalized surface sites on nitrogen-doped carbon (CN x ) nanotubes. A cationic polyelectrolyte was adsorbed on the surface of the nanotubes by electrostatic interaction between carboxyl groups on the chemically oxidized nanotube surface and polyelectrolyte chains. Negatively charged 10 nm gold nanoparticles from a gold colloid suspension were subsequently anchored to the surface of the nanotubes through the electrostatic interaction between the polyelectrolyte and the nanoparticles. This approach provides an efficient method to attach other nanostructures to carbon nanotubes and can be used as an illustrative detection of the functional groups on carbon nanotube surfaces.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl025914t