Im Jaegyun, Lee Dong-Myeong, Lee Jaegeun
School of Chemical Engineering, Pusan National University, 2 Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, Korea.
Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun 55324, Korea.
Materials (Basel). 2022 May 25;15(11):3777. doi: 10.3390/ma15113777.
We analyzed the dispersion state of carbon nanotubes (CNTs) in -cresol using dispersion stability analysis, optical microscopy, and UV-vis spectroscopy. The high dispersion stability of CNT/-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/-cresol dispersions revealed that CNT bundles in -cresol were not dispersed into individual CNTs. We also propose that the blue-shift of the G peak of CNTs in -cresol in the Raman spectrum, which had been reported as evidence of the formation of the charge-transfer complex between -cresol and CNTs, is rather attributed to the interference of -cresol's inherent peak at around 1600 cm.
我们使用分散稳定性分析、光学显微镜和紫外可见光谱法分析了碳纳米管（CNT）在对甲酚中的分散状态。当对其进行充分的超声处理时，观察到CNT/对甲酚分散体具有高分散稳定性。尽管具有高分散稳定性，但对各种CNT/对甲酚分散体的光学显微镜和紫外可见光谱分析表明，对甲酚中的CNT束并未分散成单个CNT。我们还提出，拉曼光谱中对甲酚中CNT的G峰蓝移，这一现象曾被报道为对甲酚与CNT之间形成电荷转移复合物的证据，实际上是归因于对甲酚在1600 cm左右固有峰的干扰。
