University Chemistry ›› 2021, Vol. 36 ›› Issue (9): 2101025.doi: 10.3866/PKU.DXHX202101025

Special Issue: 分析化学课程与实验教学

• Chemistry Laboratory • Previous Articles     Next Articles

Reversible Cyclic Voltammograms and Electrocatalytic Detection of Vitamin C by Carbon Nanotube Modified Electrode: A Comprehensive Electrochemical Experiment

Kunqi Wang(), Zhen Ren, Xiaona Ji, Yan Zuo, Huanxin Yang   

  • Received:2021-01-12 Accepted:2021-01-27 Published:2021-02-24
  • Contact: Kunqi Wang E-mail:wangkunqi@ccit.edu.cn

Abstract:

An undergraduate comprehensive electrochemical experiment was designed and developed. Based on the reversible cyclic voltammograms, the experiment was accomplished with a carbon nanotube modified electrode prepared by droplet coating. Using a Randles-Sevcik equation, the effective area of the electrode could be well calculated. Finally, the electrocatalytic detection of vitamin C was realized. The experiment described above partly filled up the shortage of teaching resources in cyclic voltammetry electrochemical technology for undergraduates. Thus, it shows a possibility of popularization among undergraduates.

Key words: Cyclic voltammetry, Carbon nanotube, Modified electrode, Vitamin C

MSC2000: 

  • G64