Format

Send to

Choose Destination
See comment in PubMed Commons below
ACS Nano. 2011 Feb 22;5(2):968-74. doi: 10.1021/nn102326c. Epub 2011 Jan 4.

Highly conductive graphene nanoribbons by longitudinal splitting of carbon nanotubes using potassium vapor.

Author information

1
Richard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas, 77005, USA.

Abstract

Here we demonstrate that graphene nanoribbons (GNRs) free of oxidized surfaces can be prepared in large batches and 100% yield by splitting multiwalled carbon nanotubes (MWCNTs) with potassium vapor. If desired, exfoliation is attainable in a subsequent step using chlorosulfonic acid. The low-defect density of these GNRs is indicated by their electrical conductivity, comparable to that of graphene derived from mechanically exfoliated graphite. The possible origins of directionally selective splitting of MWCNTs have been explored using computer modeling, and plausible explanations for the unique role of potassium were found.

PMID:
21204566
DOI:
10.1021/nn102326c
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Support Center