Processing and properties of highly enriched double-wall carbon nanotubes View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2009-01

AUTHORS

Alexander A. Green, Mark C. Hersam

ABSTRACT

Carbon nanotubes consist of one or more concentric graphene cylinders and are under investigation for a variety of applications that make use of their excellent thermal, mechanical, electronic and optical properties. Double-wall nanotubes are ideal systems for studying the interwall interactions influencing the properties of nanotubes with two or more walls. However, current techniques to synthesize double-wall nanotubes produce unwanted single- and multiwall nanotubes. Here, we show how density gradient ultracentrifugation can be used to separate double-wall nanotubes from mixtures of single- and multiwall nanotubes through differences in their buoyant density. This technique results in samples that are highly enriched in either single- or double-wall nanotubes of similar outer wall diameter, with the double-wall nanotubes being, on average, approximately 44% longer than the single-wall nanotubes. The longer average length of the double-wall nanotubes provides distinct advantages when they are used in transparent conductors. More... »

PAGES

64-70

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/nnano.2008.364

DOI

http://dx.doi.org/10.1038/nnano.2008.364

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1047712447

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/19119285


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