多壁碳纳米管电化学电极的制备  

Preparation of Electrochemical Electrode of Multi-walled Carbon Nanotubes

作　　者：彭佳[1] 胡陈果[2] 

机构地区：[1]四川建筑职业技术学院土木系,四川德阳618000 [2]重庆大学应用物理系,重庆400030

出　　处：《重庆工学院学报（自然科学版）》2008年第7期43-46,共4页Journal of Chongqing Institute of Technology

基　　金：国家自然科学基金资助项目(60376032)

摘　　要：用酸对多壁碳纳米管进行了处理,红外光谱显示处理后多壁碳纳米管表面接上了羧基.测定了碳纳米管薄膜的电阻率,并进行了激活能的计算,发现经10 min硝酸处理的样品有较小的电阻率和激活能.循环伏安实验显示,经过处理,碳纳米管电极在H2SO4,NaOH,KCl溶液中的电化学响应明显改善.多壁碳纳米管可以成为有应用前景的电极材料.Multi-carbon nanotubes are treated with acid. The results of infrared speetlometry show that surface of multi-carbon nanotubes are connected with lots of carboxyl. The resistivity of films is measured and the activation energy is calculated. The results show that 10min nitric acid-treated sample has smaller resistivity and activation energy. Cycle volt-ampere experiment shows that better oxidation current curve in H2SO4,NaOH,KCl solutions can be obtained after being treated. Therefore, multi-carbon nanotubes are fine electrode materials obviously.

关 键 词：碳纳米管 电极 电化学 

分 类 号：O646.16[理学—物理化学]