Study on the Characteristics of VB_(12) Modified Electrode by Electropolymerization

Authors

Hui-ting LIAN, College of Material Science and Engineering,Huaqiao University,Quanzhou 362021,Fujian,China,;College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350002,Fujian,China;
Wen-ji WANG, College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350002,Fujian,China;

Abstract

Preparation of the VB12 modified electrode and its electrochemical characteristics were studied.The results showed that the VB12 after electroactivated is able to electopolymerize on the GC by cyclic voltammetry(CV)in the DMSO solution.Differential pulse voltmmetry(DPV)showed that the VB12 catalyzed the oxidation of NO2-,SO32-and NH2NH2.The catalytic peak for NO2-on the modified electrode was observed at 0.76V(vs.SCE),but on the unmodified GC which at 1.0V.The catalytic currents increased linearly with the concentration of NO2-from 1.6×10-6 to 4.3×10-4 mol·L-1 with a correlation coefficient of 0.9987.The VB12 modified electrode showed excellent stability and high sensitivity to determined the NO2-in the rains and lake waters with a recovery of 92%~107%.

Keywords

VitaminB12, lectopolymerization, catalyzed oxidation, NO2-, SO32-, NH2NH2

DOI Link

https://doi.org/10.61558/2993-074X.1805

Publication Date

2007-05-28

Online Available Date

2007-05-28

Revised Date

2007-05-28

Received Date

2007-05-28

Recommended Citation

Hui-ting LIAN, Wen-ji WANG. Study on the Characteristics of VB_(12) Modified Electrode by Electropolymerization[J]. Journal of Electrochemistry, 2007 , 13(2): 188-192.
DOI: 10.61558/2993-074X.1805
Available at: https://jelectrochem.xmu.edu.cn/journal/vol13/iss2/15