A Novel Hydrogen Peroxide Sensor Based on Multiwalled Carbon Nanotubes/Poly(pyrocatechol violet)-Modified Glassy Carbon Electrode

作者：Fang Bin^*; Zhang Na; Zhang Wei; Gu Aixia; Wang Guangfeng

来源：Journal of Applied Polymer Science, 2009, 112(6): 3488-3493.

DOI：10.1002/app.29929

• H(2)O(2)
• pyrocatechol violet
• multiwalled carbon nanotubes
• modified electrode

In this work, a new hydrogen peroxide (H(2)O(2)) sensor was reported based on electropolymerizing pyrocatechol violet (PCV) on a glassy carbon electrode modified with multiwalled carbon nanotubes (MWCNTs). The modified electrode was characterized by cyclic voltammetry (CV) and scanning electron micrography. The result of electrochemical experiments showed a favorable catalytic activity toward the reduction of H(2)O(2) at -0.4 V with a linear response range from 2.0 mu M to 2.4 mM and a detection limit of 0.7 mu M (at a S/N = 3). The well catalytic activity of proposed sensor could be attributed to the poly-PCV/MWCNTs composite film on the electrocatalytic reduction of H(2)O(2). In addition, the sensor also exhibited a high sensitivity, good stability, and reproducibility.

• 出版日期2009-6-15
• 单位安徽师范大学