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Catalyst‐related Dispersion of Multiwalled Carbon Nanotubes by Simple Ultrasonication
Author(s) -
Park Suyoung,
Kang Hana,
Kim Youngkwang,
Lee Dongjin,
Jin Changhyun
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10649
Subject(s) - sonication , dispersion (optics) , catalysis , absorbance , materials science , chemical engineering , pulmonary surfactant , carbon nanotube , nanotechnology , chemistry , chromatography , organic chemistry , optics , physics , engineering
Various multiwalled carbon nanotubes ( MWCNTs ), obtained from three different catalyst‐making processes, were successfully dispersed through control by ultrasonication in a surfactant solution. Diverse MWCNTs exhibited a similar formation of aggregations comprising bundles of adjacent aligned nanostructures, regardless of the catalyst type. In contrast, with regard to the dimension of the MWCNTs , the distinct morphologies were affected by the catalyst type. The dispersion results according to power‐ and time‐dependent ultrasonication corresponded to ultraviolet–visible spectroscopy absorbance spectra between 200 and 800 nm. With the same surfactant concentrations, the maximum dispersion conditions were an ultrasonication power of 450 W for 60 min.