Imperial College London

Prof Milo Shaffer

Faculty of Natural SciencesDepartment of Chemistry

Professor of Materials Chemistry
 
 
 
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Contact

 

+44 (0)20 7594 5825m.shaffer

 
 
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Assistant

 

Mr John Murrell +44 (0)20 7594 2845

 
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Location

 

M221Royal College of ScienceSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Clancy:2015:10.1039/c5ta03561a,
author = {Clancy, AJ and Melbourne, J and Shaffer, MSP},
doi = {10.1039/c5ta03561a},
journal = {Journal of Materials Chemistry A},
pages = {16708--16715},
title = {A one-step route to solubilised, purified or functionalised single-walled carbon nanotubes},
url = {http://dx.doi.org/10.1039/c5ta03561a},
volume = {3},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Reductive dissolution is a promising processing route for single walled carbon nanotubes (SWCNTs) thatavoids the damage caused by ultrasonication and aggressive oxidation whilst simultaneously allowingaccess to a wealth of SWCNT functionalisation reactions. Here, reductive dissolution has been simplifiedto a single one-pot reaction through the use of sodium naphthalide in dimethylacetamide allowingdirect synthesis of SWCNT Na+ solutions. Gram quantities of SWCNTs can be dissolved at concentrationsover 2 mg mL 1. These reduced SWCNT solutions can easily be functionalised through the addition ofalkyl halides; reducing steric bulk of the grafting moiety and increasing polarisability of the leaving groupincreases the extent of functionalisation. An optimised absolute sodium concentration of 25 mM isshown to be more important than carbon to metal ratio in determining the maximum degree offunctionalisation. This novel dissolution system can be modified for use as a non-destructive purificationroute for raw SWCNT powder by adjusting the degree of charging to dissolve carbonaceous impurities,catalyst particles and defective material, before processing the remaining SWCNTs.
AU - Clancy,AJ
AU - Melbourne,J
AU - Shaffer,MSP
DO - 10.1039/c5ta03561a
EP - 16715
PY - 2015///
SN - 2050-7496
SP - 16708
TI - A one-step route to solubilised, purified or functionalised single-walled carbon nanotubes
T2 - Journal of Materials Chemistry A
UR - http://dx.doi.org/10.1039/c5ta03561a
UR - http://hdl.handle.net/10044/1/26200
VL - 3
ER -