利用含蒽基和重氮基分子分离单壁碳纳米管  

Separation of single-walled carbon nanotubes by using an anthryl and benenediazonium compound

作　　者：张潇娴[1] 王东卫[1] 谌志强[2] 李赛[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065 [2]中国人民解放军军事医学科学院,天津300050

出　　处：《功能材料》2013年第15期2206-2212,共7页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(30901199;81270041)

摘　　要：碳纳米管以其优异的理化性质受到广泛关注,但是通常制备所得单壁碳纳米管(SWNTs)均为金属型和半导体型的混合物,制约了SWNTs的进一步应用。首次合成了1-(9-蒽基)-3-(4-氨基苯)-2-丙烯酮氟硼酸重氮盐(A),它含有优先与金属型单壁碳纳米管(met-SWNTs)反应的两种基团:直链稠环芳烃和重氮基,并考察了其对SWNTs分离的影响。共振拉曼光谱和场效应晶体管特性曲线表明在上清液中富集了半导体型单壁碳纳米管(sem-SWNTs),而沉淀中高度富集了金属型单壁碳纳米管(met-SWNTs)。Single-walled carbon nanotubes（SWNTs） have received much attention because of their excellent physics and electrical properties,but nowadays SWNTs are typically grown as mixtures of metallic-SWNTs（met-SWNTs） and semiconducting-SWNTs（sem-SWNTs）,which limited their widespread application.In this paper,the compound fluoroborate diazonium salt of 1-（9-anthryl）-3-（4-aminopheny1）-2-propen-1-tone（donated A for convenience） were designed and successfully synthesized for the first time.It had two functional groups： polycyclic aromatic hydrocarbon and benediazonium.This compound A was used to separate SWNTs in a simple sonication-centrifugation procedure.Resonant Raman spectra with 532,633,785nm lasers and performance of thin-film FET devices both showed highly effective enrichment of met-SWNTs in the precipitation and enrichment of sem-SWNTs in supernatant solutions.

关 键 词：单壁碳纳米管 分离 金属型 半导体型 

分 类 号：TB383[一般工业技术—材料科学与工程] O625[理学—有机化学]