Find in Library

We analyzed the dispersion state of carbon nanotubes (CNTs) in <i>m</i>-cresol using dispersion stability analysis, optical microscopy, and UV-vis spectroscopy. The high dispersion stability of CNT/<i>m</i>-cresol dispersion was observed when it was sufficiently treated with ultrasonication. Despite the high dispersion stability, optical microscopy and UV-vis spectroscopy analysis of various CNT/<i>m</i>-cresol dispersions revealed that CNT bundles in <i>m</i>-cresol were not dispersed into individual CNTs. We also propose that the blue-shift of the G peak of CNTs in <i>m</i>-cresol in the Raman spectrum, which had been reported as evidence of the formation of the charge-transfer complex between <i>m</i>-cresol and CNTs, is rather attributed to the interference of <i>m</i>-cresol’s inherent peak at around 1600 cm⁻¹.