大学化学

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“双碳”战略下应用化学专业创新拓展实验课程设计——电催化两电子氧还原制备过氧化氢

智倩君1, 熊斌阳1, 穆天天1, 胡志欢1, 吴智渊1, 姜蓉2, 肖昕1   

  1. 1 贵州大学化学与化工学院, 贵州 贵阳 550025;
    2 北京化工大学化学学院, 北京 100029
  • 收稿日期:2026-07-13 录用日期:2026-08-25
  • 通讯作者: 肖昕Xin Xiao E-mail:gyhxxiaoxin@163.com

Design of innovative extended laboratory courses for applied chemistry under the “dual carbon” strategy: electrocatalytic two-electron oxygen reduction for hydrogen peroxide production

Qianjun Zhi1, Binyang Xiong1, Tiantian Mu1, Zhihuan Hu1, Zhiyuan Wu1, Rong Jiang2, Xin Xiao1   

  1. 1 College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou Province, China;
    2 College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2026-07-13 Accepted:2026-08-25

摘要: 本文将电催化两电子氧还原制备过氧化氢的前沿课题引入本科创新拓展实验教学,以八甲基铜酞菁分子为阴极催化剂,构建氧气高选择性转化过氧化氢的完整体系。实验内容涵盖催化剂合成、电极制备与表征、电化学测试及产物定量分析,融有机合成、电化学与定量分析于一体,实现多模块交叉的综合化学实验训练。具体手段包括旋转环盘电极测试、气体扩散电解池的恒电位测试以及高硫酸铈显色定量分析。通过系统评估催化体系的性能,学生可掌握过氧化氢选择性、电子转移数、法拉第效率及产率等关键指标的测算方法。该实验将有机超分子材料制备、电化学测试与分析化学定量检测有机结合,帮助学生理解过氧化氢绿色合成的现实意义,拓展学科视野。实验设计兼具科学性与操作性,试剂设备在多数高校实验室均可获得,结果重复性较好,有助于激发学生的探究兴趣,培养创新意识和科学素养,具有良好的教学可实施性与推广价值。

关键词: 创新拓展实验, 电化学, 两电子氧还原反应, 过氧化氢绿色生产

Abstract: This work introduces the cutting-edge topic of electrocatalytic two-electron oxygen reduction for hydrogen peroxide production into undergraduate innovative extended laboratory teaching. Using octamethyl copper phthalocyanine as the cathode catalyst, a complete system for the highly selective conversion of oxygen to hydrogen peroxide is constructed. The experimental content covers catalyst synthesis, electrode preparation and characterization, electrochemical testing, and quantitative product analysis, integrating organic synthesis, electrochemistry, and quantitative analysis into a comprehensive chemistry laboratory training program with multiple interconnected modules. Specific methods include rotating ring-disk electrode (RRDE) tests, potentiostatic tests in a gas diffusion electrolytic cell, and ceric sulfate colorimetric quantitative analysis. Through systematic evaluation of the catalytic system’s performance, students can master the measurement methods for key indicators such as hydrogen peroxide selectivity, electron transfer number, Faradaic efficiency, and yield. This experiment organically combines the preparation of organic supramolecular materials, electrochemical testing, and quantitative analysis in analytical chemistry, helping students understand the practical significance of green hydrogen peroxide synthesis and broaden their disciplinary horizons. The experimental design is both scientific and operational; the reagents and equipment are available in most university laboratories, and the results show good reproducibility. It helps stimulate students’ interest in inquiry, cultivate innovative awareness and scientific literacy, and has good teaching feasibility and promotional value.

Key words: Innovative extended experiment, Electrochemistry, Two-electron oxygen reduction reaction, Green production of hydrogen peroxide