Synthesis and Characterization of Molecularly-Bridged Single-Walled Carbon Nanotubes and Electrical Properties of Their Films
Synthesis and Characterization of Molecularly-Bridged Single-Walled Carbon Nanotubes and Electrical Properties of Their Films
复制标题
分子桥单壁碳纳米管的合成、表征及其薄膜的电性能
DOI：
10.1166/sam.2013.1664
复制
发表时间：
2013
影响因子：
0.9
通讯作者：
Jombert A
中科院分区：
文献类型：
--
作者：
Jombert A
碳纳米管（SWNT）网络由于其增强的可及表面积而引起了人们的特别兴趣。在这里，一个优雅的方式制备共价互连的单壁碳纳米管是第一次通过偶联反应证明。Sonogashira和Ullmann偶联反应为制备分子桥单壁碳纳米管（MBSWNTs）提供了一条通用的途径。偶联在单壁碳纳米管之间产生C-C键，产生具有导电的1，2-二苯基-联乙炔和联芳基桥的MBSWNT。通过XPS进行的元素组成分析显示了成功偶联的证据，而相互连接的单壁碳纳米管的质量迹线证实了对应于共轭连接体的断裂。
Covalently interconnected single walled carbon nanotube (SWNT) networks have attracted a particular interest due to their enhanced accessible surface area. Herein, an elegant way of preparing covalently interconnected SWNTs is demonstrated for the first time via coupling reactions. Sonogashira and Ullmann coupling reactions offer a versatile route for the preparation of molecularly-bridged SWNTs (MBSWNTs). Couplings create C—C bonds between SWNTs yielding MBSWNTs with conductive 1,2-diphenyl-diacetylene and biaryl bridges. Elemental composition analysis done by XPS shows the evidence of successful couplings while mass traces of the interconnected SWNTs corroborating with fragmentations corresponding to conjugated linkers.