直流电电化学沉积镍制备原位生长碳纳米管化学修饰电极  

Preparation of Carbon Nanotube Chemically Modified Electrode via Growing In situ Method by the Direct Current Electrochemical Deposition Nickel Catalyst

作　　者：何正文[1] 江奇[1] 杨荣[1] 亓鹏[1] 赵斐[1] 袁华[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,成都610031 [2]School of Materials Science and Engineering,University of New South Wales

出　　处：《物理化学学报》2010年第5期1214-1218,共5页Acta Physico-Chimica Sinica

基　　金：国家杰出青年科学基金(50588201);国家自然科学基金(50907056;50872116);四川省科技攻关计划((05GG009-003;2006Z02-006-1);四川省应用基础研究基金(2008JY0061);西南交通大学基础科学研究基金(2007B20);西南交通大学工程实践项目(10-003)资助~~

摘　　要：利用直流电电化学沉积法将生长碳纳米管(CNT)的催化剂镍均匀地附着在石墨电极(GE)表面,再通过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).电化学沉积的金属镍和所制备的修饰电极分别用光学显微镜、扫描电子显微镜(SEM)和电子能谱(EDX)进行表征,所得修饰电极的电化学性能用[Fe(CN)6]3-/[Fe(CN)6]4-溶液进行表征.结果表明:经直流电电化学沉积,可以在石墨电极表面沉积一层致密的金属镍,能生长出管径均匀的碳纳米管,所制得的修饰电极具有良好的电化学响应灵敏性和准确性,可在电化学检测领域发挥重要的应用.Grown in situ carbon nanotube chemically modified electrode（GSCNT-CME） was prepared by the in situ growth of carbon nanotube（CNT） onto a pretreated graphite electrode（GE） via catalytic chemical vapor deposition.The pretreated GE was prepared by direct current electrochemical deposition using a nickel catalyst.The deposited nickel and the obtained GSCNT-CME were characterized by optical microscopy,scanning electron microscopy（SEM）,and energy dispersive X-ray diffraction（EDX）.The electrochemical performance of the obtained GSCNTCMEs were characterized by cyclic voltammetry using a [Fe（CN）6]3-/[Fe（CN）6]4-solution.Results showed that there was a layer of nickel on the pretreated GE surface after direct current electrochemical deposition and CNT with uniform tube diameters were present on the surface of the GE.The prepared GSCNT-CME has good current response sensitivity and good accuracy.It may be applied in electrochemical testing field.

关 键 词：电化学沉积 碳纳米管化学修饰电极 原位生长 

分 类 号：TB383.1[一般工业技术—材料科学与工程]