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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la803947q
|2 doi
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|a eng
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| 100 |
1 |
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|a Dementev, Nikolay
|e verfasserin
|4 aut
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| 245 |
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|a Fluorescence labeling and quantification of oxygen-containing functionalities on the surface of single-walled carbon nanotubes
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| 264 |
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 14.09.2009
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|a Date Revised 30.06.2009
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Fluorescence labeling of surface species (FLOSS) was applied to identify and determine the concentration of oxygen-containing functionalities on single-walled carbon nanotubes (SWCNTs), subjected to two different purification processes (air/HCl and nitric acid treatments) and compared to as-received (nonpurified) SWCNTs. The fluorophores were selected for their ability to covalently bind, with high specificity, to specific types of functionalities (OH, COOH, and CHO). FLOSS revealed that even as-received SWCNTs are not pristine and contain approximately 0.6 atomic % oxygen functionalities. FLOSS showed that, after nitric acid treatment, SWCNTs are approximately 5 times more functionalized than SWCNTs after air/HCl purification (5 versus 1 atomic % oxygen functionalities), supporting the idea that the former purification process is more aggressive than the latter. FLOSS demonstrated that carbonyls are the major functionalities on nitric-acid-purified SWCNTs, suggesting that chemical derivatization strategies might consider exploiting aldehyde or ketone chemistry
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|a Journal Article
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1 |
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|a Feng, Xue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Borguet, Eric
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 25(2009), 13 vom: 07. Juli, Seite 7573-7
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|x 1520-5827
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| 773 |
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|g volume:25
|g year:2009
|g number:13
|g day:07
|g month:07
|g pages:7573-7
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|u http://dx.doi.org/10.1021/la803947q
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