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Investigating the reactive sites and the anomalously large changes in surface pK(a) values of chemically modified carbon nanotubes of different morphologies

Abstract:

"Bamboo-like" multiwalled (b-MWCNT), "hollow-tube" multiwalled (h-MWCNT) and single-walled carbon nanotubes (SWCNT), chemically modified with 1-anthraquinonyl (AQ) or 4-nitrophenyl (NP) groups, are characterized using voltammetric, electron microscopic and Raman spectroscopic techniques. The pKa values of the AQ-modified CNTs are found to be shifted by greater than three units when compared to the pKa values of anthrahydroquinone (AHQ, the reduced form of AQ) in aqueous solution to beyond pH ...

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Publication status:
Published

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Publisher copy:
10.1039/b702492d

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Journal:
JOURNAL OF MATERIALS CHEMISTRY
Volume:
17
Issue:
25
Pages:
2616-2626
Publication date:
2007-01-01
DOI:
EISSN:
1364-5501
ISSN:
0959-9428
URN:
uuid:03809f80-1403-4956-b154-f43dfb326c93
Source identifiers:
40381
Local pid:
pubs:40381
Language:
English

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