Electrokinetics of Carbon Fibers Produced by a Direct Oxyfluorination

Soo Jin Park, Min Kang Seo, Kyong Yop Rhee

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2 Scopus citations

Abstract

PAN-based carbon fibers were treated by a direct oxyfluorination method to study the chemical surface composition and electrokinetic behavior of the fibers. The physicochemical properties of the fibers were investigated by using a photoelectron spectroscopy (XPS) and zeta (ζ)-potential. As a result, the surface functional groups, including C-O, C=O, HO-C=O, and C-Fx after oxyfluorination, were formed on the carbon fiber surfaces. And the time dependence of the ζ-potential of oxyfluorinated carbon fibers reflected the surface bonding state of the obtained fiber materials, due to the dissociation of C-Fx groups. These results could be explained by the modification of chemical composition and the formation of physical bonding on the fiber surfaces, which could be attributed to the oxyfluorination.

Original languageEnglish
Pages (from-to)13100-13105
Number of pages6
JournalJournal of Physical Chemistry B
Volume107
Issue number47
DOIs
StatePublished - 27 Nov 2003
Externally publishedYes

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