基于激光雕刻石墨烯电极的伏安法实验教学新方案

A New Program of Voltammetry Experiment Teaching Based on Laser-Scribed Graphene Electrode

伏安法是仪器分析课程的重要章节和教学难点,其现有实验教学方案在理论融合和应用拓展等方面存在不足。本文通过引入较为前沿的激光雕刻石墨烯电极体系,丰富内容如扩散电流理论和电催化现象模拟,延伸应用如奶粉香兰素检测,帮助学生深入理解方法的基本原理、研究动向和应用价值。实验综合成本低、电极可批量制备,适合教学开展。

Voltammetry is an important chapter and teaching difficulty in the course of Instrumental Analysis.However,the existing experiment teaching program has shortcomings in theoretical integration and application expansion.This paper introduces a cutting-edge research progress in material sciences,i.e.,laser-scribed graphene technology,into voltammetry experiment teaching.The program enriches the experiment contents by introducing basic knowledge such as simulation of diffusion current theory and electrocatalytic phenomena,and extending applications such as vanillin detection in powdered milk.These new contents will help students to deeply understand the basic principles,research trends,and application value of the method.The comprehensive cost of the experiment is low,and the electrodes can be prepared in batches,thus making it suitable for experiment teaching.