原位生长缺陷碳纳米管化学修饰电极的研制  

Preparation of defective carbon nanotube chemically modified electrodes grown in situ

作　　者：杨槐[1] 江奇[1] 何正文[1] 李影[1] 曾静雯[1] 赵勇[1,2] 

机构地区：[1]西南交通大学超导研究开发中心,材料先进技术教育部重点实验室,四川成都610031 [2]School of Materials Science and Engineering,University of New South Wales

出　　处：《功能材料》2009年第10期1747-1749,1753,共4页Journal of Functional Materials

基　　金：国家杰出青年科学基金资助项目(50588201);四川省科技攻关计划资助项目((05GG009-003;2006Z02-006-1);四川省应用基础研究基金资助项目(2008JY0061);西南交通大学基础科学研究基金资助项目(2007B20);西南交通大学大学生工程实践资助项目(09-53)

摘　　要：利用浸渍法将碳纳米管(CNT)催化剂附着在石墨电极表面,用化学气相沉积法制备得到原位生长碳纳米管化学修饰电极(GSCNT-CME)。通过控制催化剂及反应气体的配比,在石墨电极表面得到的管壁多缺陷的CNT,研究表明这种GSCNT-CME具有良好的电化学检测性能。研究还发现这种GSCNT-CME具有高稳定性的原因是CNT是基于石墨电极上碳原子的晶格而生长的。In this paper,grown in situ carbon nanotube chemically modified electrodes （GSCNT-CME） was prepared by the chemical vapor deposition （CVD）. Carbon nanotube （CNT） was grown on the graphite electrode by impregnating the CNT catalyst in the electrode. The obtained CNT had many defects on the CNT walls by modifying the proportion of the catalyst and the reaction gas. The results showed that the GSCNT-CME with many defects on the CNT walls had excellent electrochemical testing performance. Moreover, the GSCNT-CME had good stability for that the CNT grown on the carbon atoms of the graphite electrode, namely the carbon atoms of the CNT and the atoms of the graphite electrode had covalent bond.

关 键 词：化学修饰电极 缺陷碳纳米管 原位生长 

分 类 号：O657[理学—分析化学] TB383[理学—化学]