University Chemistry ›› 2023, Vol. 38 ›› Issue (1): 227-232.doi: 10.3866/PKU.DXHX202203034

• Chemistry Laboratory • Previous Articles     Next Articles

Analysis and Mechanism Discussion on the Differences of Voltammograms of Acetaminophen Measured Using a Glassy Carbon Electrode before and after Pre-anodization Based on Inquiry Teaching Mode

Jing Li1, Hua Zhang1, Chengke Wu2, Huijie Li1, Suling Feng1, Quanmin Li1, Enbo Shangguan2,*()   

  1. 1 School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453003, Henan Province, China
    2 School of Materials Science and Engineering, Henan Normal University, Xinxiang 453003, Henan Province, China
  • Received:2022-03-14 Accepted:2022-04-15 Published:2022-05-16
  • Contact: Enbo Shangguan E-mail:shangguanenbo@163.com

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Abstract:

Based on the activation energy of the reaction occurring at the electrode, the structure of the glassy carbon electrode (GCE) surface changes before and after pre-anodization and hydrogen bonding catalysis. This causes differences in the voltammograms of acetaminophen measured before and after pre-anodization using a GCE. These differences are discussed in this paper by applying the inquiry teaching mode, whicn can not only improve the quality of delivering chemistry experiments but also the teachers' instructional skills.

Key words: Inquiry teaching mode, Glassy carbon electrode, Hydrogen bonding catalysis, Acetaminophen voltammogram