Dissymmetric Carbon Nanotubes by Bipolar Electrochemistry
- 12 January 2008
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 8 (2), 500-504
- https://doi.org/10.1021/nl072652s
Abstract
Short carbon nanotubes have been modified selectively on one end with metal using a bulk technique based on bipolar electrochemistry. A stabilized suspension of nanotubes is introduced in a capillary containing an aqueous metal salt solution, and a high electric field is applied to orientate and polarize the individual tubes. During their transport through the capillary under sufficient polarization (30 kV), each nanotube is the site of water oxidation on one end and the site of metal ion reduction on the other end with the size of the formed metal cluster being proportional to the potential drop along the nanotube.Keywords
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