乙萘酚在聚N,N-二甲基苯胺/多壁碳纳米管修饰电极上的电化学行为研究  

Electrochemical Behavior of 2-Naphthol at Polymeric N,N-Dimethylaniline/Multiwalled Carbon Nanotubes Modified Electrode

作　　者：李娟娟[1] 李将渊[1] 年作权[1] 

机构地区：[1]化学合成与污染控制四川省重点实验室,西华师范大学化学化工学院,四川南充637002

出　　处：《分析科学学报》2012年第4期477-481,共5页Journal of Analytical Science

基　　金：四川省南充市科学技术局重点科研项目(No.N2008-SF003)

摘　　要：研究了乙萘酚在不同修饰电极上的电化学行为。结果表明:以层层修饰的聚N,N-二甲基苯胺/多壁碳纳米管修饰电极(PDMA/MWNT/GCE)对乙萘酚的电化学响应最佳。在pH为4.86的HAc-NaAc溶液中,乙萘酚在PDMA/MWNT/GCE上是电子数和质子数均为1的扩散控制不可逆电氧化过程,其氧化峰电流与浓度在3.0×10-6～3.0×10-4 mol/L范围内呈良好的线性关系,相关系数R为-0.9958,检出限为2.0×10-6 mol/L,样品测定回收率在94.47%～104.60%之间。Electrochemical behavior of 2-naphthol at polymeric N, N-dimethylaniline/multiwalled carbon nanotubes modified electrode （PDMA/MWNT/GCE） was investigated. Results showed that 2-naphthol at PDMA/MWNT/GC multilayer exhibited a diffused and irreversible redox process with the electron transfer number of 1 and the proton number of 1, respectively. The oxidation peak current had a good linear relationship with the concentration range of 3.0 X 10-6 - 3.0 X 10-4 mol/L with the correlation coefficient of 0. 9958 and detection limit of 2.0 X 10-6 mol/L. The recovery was between 94.47% and 104%.

关 键 词：N N-二甲基苯胺 多壁碳纳米管 修饰电极 乙萘酚 电化学行为 

分 类 号：O646.54[理学—物理化学]