Carbon nanotubes for supercapacitors:Consideration of cost and chemical vapor deposition techniques  

作　　者：Chao Zheng Weizhong Qian Chaojie Cui Guanghui Xu Mengqiang Zhao Guili Tian Fei Wei 

机构地区：[1]Department of Chemical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Journal of Natural Gas Chemistry》2012年第3期233-240,共8页天然气化学杂志（英文版）

基　　金：financially supported by the National Basic Research Program of China (2011CB932602);the NSFC Key Program (20736007,20736004);the Foundation of Tsinghua University (2011THZ08,new energy)

摘　　要：In this topic, we first discussed the requirement and performance of supercapacitors using carbon nanotubes （CNTs） as the electrode, including specific surface area, purity and cost. Then we reviewed the preparation technique of single wailed CNTs （SWNTs） in relatively large scale by chemical vapor deposition method. Its catalysis on the decomposition of methane and other carbon source, the reactor type and the process control strategies were discussed. Special focus was concentrated on how to increase the yield, selectivity, and purity of SWNTs and how to inhibit the formation of impurities, including amorphous carbon, multiwalled CNTs and the carbon encapsulated metal particles, since these impurities seriously influenced the performance of SWNTs in supercapacitors. Wish it be helpful to further decrease its product cost and for the commercial use in supercapacitors.In this topic, we first discussed the requirement and performance of supercapacitors using carbon nanotubes （CNTs） as the electrode, including specific surface area, purity and cost. Then we reviewed the preparation technique of single wailed CNTs （SWNTs） in relatively large scale by chemical vapor deposition method. Its catalysis on the decomposition of methane and other carbon source, the reactor type and the process control strategies were discussed. Special focus was concentrated on how to increase the yield, selectivity, and purity of SWNTs and how to inhibit the formation of impurities, including amorphous carbon, multiwalled CNTs and the carbon encapsulated metal particles, since these impurities seriously influenced the performance of SWNTs in supercapacitors. Wish it be helpful to further decrease its product cost and for the commercial use in supercapacitors.

关 键 词：SUPERCAPACITOR carbon nanotubes： chemical vapor deposition CATALYSIS methane 

分 类 号：O613.71[理学—无机化学] TB383[理学—化学]