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120mg/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40mg/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。
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.
作者
巩倩
周雨融
许昊
邸江涛
门传玲
GONG Qian;ZHOU Yu-rong;XU Hao;DI Jiang-tao;MEN Chuan-ling(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Division of Advanced Nanomaterials and Key Lab of Nano-Devices and Applications,Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou,Suzhou 215123,China)
出处
《广州化学》
CAS
2020年第1期1-9,37,共10页
Guangzhou Chemistry
基金
国家自然科学基金(21773293和21603264).
关键词
碳纳米管阵列
分散
超级电容器
carbon nanotube array
dispersion
supercapacitor
