Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 10, 2008
Previous Article Next Article

A reversible decoration of multi-walled carbon nanotubes (MWCNTs) by acyclic η4-(1E,3E)-dienyl-Fe(CO)3 complexes

Author affiliations

Abstract

Selected acyclic disubstituted η4-(1E,3E)-dienyl-Fe(CO)3 iron complexes presented a non-covalent, but reversible affinity for multi-walled carbon nanotube (MWCNT) sidewalls likely mediated by hydrophobic and/or π–π stacking interactions. Resulting iron-complexed MWCNT-based composites displayed methyl ester/acetate, aldehyde and/or OH functional groups on CNT sidewalls. They displayed strong FT-IR absorption peaks due to organometallic C[triple bond, length as m-dash]O groups of the Fe(CO)3 unit (νC[triple bond, length as m-dash]O = 1966–2068 cm−1). These peaks appeared in an absorption window free of any parasitic band that usually characterize organic/bio-organic species. Routine FT-IR spectroscopy enabled an effective tracking of adsorption processes of iron complexes onto MWCNT sidewalls. Iron-complexed MWCNTs may be readily dissociated using CH3CN, allowing an accurate weight quantification of adsorptions. Both interacting components remained unmodified after composite dissociation. Sidewall oxygenated defects at high concentration were also shown to be detrimental to iron complex adsorption. This quantitative decoration methodology may constitute a quite unusual application in the Quality-Control (QC)-driven standardization/improvement of the industrial production of MWCNTs (detection of MWCNT sidewall oxygenated defects during fabrication and purification).

Graphical abstract: A reversible decoration of multi-walled carbon nanotubes (MWCNTs) by acyclic η4-(1E,3E)-dienyl-Fe(CO)3 complexes

Back to tab navigation

Supplementary files

Article information


Submitted
15 Oct 2007
Accepted
09 Jan 2008
First published
01 Feb 2008

J. Mater. Chem., 2008,18, 1093-1099
Article type
Paper

A reversible decoration of multi-walled carbon nanotubes (MWCNTs) by acyclic η4-(1E,3E)-dienyl-Fe(CO)3 complexes

J. Lellouche, M. Piran, L. Shahar, J. Grinblat and C. Pirlot, J. Mater. Chem., 2008, 18, 1093
DOI: 10.1039/B715913G

Search articles by author

Spotlight

Advertisements