Journal
THIN SOLID FILMS
Volume 516, Issue 17, Pages 5781-5784Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.10.071
Keywords
multi-walled carbon nanotubes; surface modification; dispersion; thin film
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Carboxylic acid groups were functionalized to MWNTs using some aqueous acid solutions and the resultant carboxylated MWNTs were in detail analyzed through structural characterizations. The characteristic Bragg peaks of pristine MWNTs were analyzed by XRD measurements. After acid treatment the diffraction peaks (100), (101), and (102) of pristine MWNTs disappeared, but the diffraction peak (002) was maintained in the carboxylated MWNTs. The structural and chemical changes after carboxylation of MWNTs improved the dispersibility of the resultant carboxylated MWNTs in water. (C) 2007 Elsevier B.V. All rights reserved.
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