Linked Life Data

19672537

Source:http://linkedlifedata.com/resource/pubmed/id/19672537

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
33
pubmed:dateCreated
2009-8-12
pubmed:abstractText
Separation of metallic and semiconducting single-walled carbon nanotubes (SWCNTs) is of great importance for SWCNT-based nano-electronics. We propose a tandem extraction strategy for efficient separation of different types of SWCNTs. This strategy is based on chiral angle discriminated adsorption of soluble condensed benzenoid aromatic molecules on SWCNTs, which induce different dispersibility of SWCNTs in various organic solvents. The proposed tandem extraction strategy involves two extraction steps, in which the first step extracts metallic SWCNTs with large chiral angles and the subsequent step enriches large chiral angle semiconducting SWCNTs. This separation strategy is tested on a series of condensed benzenoid aromatic molecules. Both experimental and theoretical results show that the separation efficiency is strongly dependent on the molecular morphology, i.e. higher aspect ratio gives better separation results. The separation efficiency is also dependent on the SWCNT diameter and the solvent properties. This tandem extraction strategy may also be applied to other available noncovalent separation reagents to improve their separation efficiency.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Sep
pubmed:issn
1463-9076
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7257-67
pubmed:year
2009
pubmed:articleTitle
Tandem extraction strategy for separation of metallic and semiconducting SWCNTs using condensed benzenoid molecules: effects of molecular morphology and solvent.
pubmed:affiliation
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't