大学化学 >> 2023, Vol. 38 >> Issue (1): 227-232.doi: 10.3866/PKU.DXHX202203034

化学实验 上一篇    下一篇

基于探究式教学模式对预阳极化前后的玻碳电极测定对乙酰氨基酚的伏安图差异的分析及机理讨论

李晶1, 仉华1, 吴呈珂2, 李慧杰1, 冯素玲1, 李全民1, 上官恩波2,*()   

  1. 1 河南师范大学化学化工学院, 河南 新乡 453003
    2 河南师范大学材料科学与工程学院, 河南 新乡 453003
  • 收稿日期:2022-03-14 录用日期:2022-04-15 发布日期:2022-05-16
  • 通讯作者: 上官恩波 E-mail:shangguanenbo@163.com
  • 基金资助:
    河南师范大学高等教育教学改革研究与实践项目(YJS2021JG10);河南师范大学研究生优质课程(YJS2022KC05);河南省高等教育教学改革与实践项目(2021SLGLX054Y)

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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摘要：

基于电极反应活化能，预阳极化前后玻碳电极表面结构变化及氢键催化作用，以探究式教学模式讨论了预阳极化前后的玻碳电极测定对乙酰氨基酚的伏安图差异形成的原因。这种教学模式不仅有利于提高实验课教学质量，也会促进教师自身业务能力的提高。

关键词: 探究式教学模式, 玻碳电极, 氢键催化, 乙酰氨基酚伏安图

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