Abstract
The effect of the G to D band intensity (IG/ID) ratio, percentage of Sp2 hybridization and percent of impurities on the electrical resistivity of nanocomposites reinforced with multi-walled carbon nanotubes (MWCNT) has been studied. The MWCNT were purified by reflux, selective oxidation, sonication and mixed oxidative method. The IG/ID ratio was determined by RAMAN spectroscopy, the percent of impurities was determined by TGA whereas the percentage of Sp2 hybridization and carbons bonds by XPS. The resistivity measurements showed how nanocomposites prepared with MWCNTs treated by the mixed oxidative method has the lowest volumetric resistivity values; fact ascribed to the structural changes on the outer shells resulted from the mixed method along to the formation of conductive aggregates where the number of contacts per fiber increases. Hence, for electrical conductivity in CNT/polymer composites, Sp2 hybridization couples with an agglomerated structure have a beneficial effect on electrical conductivity.
Keywords: Chemical techniques, Defects, Electric properties, Nanostructures, Raman spectroscopy.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
Related Books
Advances in Organic Synthesis
The Synthetic Methods, Structures, and Properties of the Ca-C σ Bond Organocalcium Containing Compounds
Advances in Organic Synthesis
Chemistry of Bipyrazoles: Synthesis and Applications
Advances in Organic Synthesis
Advanced Nanocatalysis for Organic Synthesis and Electroanalysis
Advances in Organic Synthesis
Advances in Organic Synthesis
5