【摘要】 采用浮动催化剂化学气相沉积(FCCVD)的方法制备碳纳米管(CNT)阵列,通过优化温度、注射速率、生长基底等实验条件,得到高度达到3mm的超长CNTs阵列。选用间甲酚为分散剂,实现了CNT阵列的超大浓度分散,最大分散浓度可以达到120 mg/mL,良好的分散性可以使分散体形成紧密团聚的面团状。选用40 mg/mL的浓糊状分散体,用刮涂的方法得到了大面积的CNTs纸,测试了CNTs的电容性能,表现出稳定的电容器性能。更多还原

【Abstract】 In this work, floating catalyst chemical vapor deposition(FCCVD) was adopted to produce carbon nanotube(CNT) array. For the purpose of processing CNT arrays with ultra-long CNT length, reaction temperature, injecting rate of carbon source and catalyst, and substrate were studied. As a result, the CNT array with 3 mm CNT length was synthesized. Then, m-cresol was used as dispersing agent to disperse the CNT array. The CNT concentration of as-prepared solution could be up to 120 mg/mL. Meanwhile, good dispersion of CNT solution could result in cluster-like CNT materials. CNT paper was obtained by converting from 40 mg/mL CNT solution, which shows a good and stable capacitive performance.更多还原