大学化学 >> 2026, Vol. 41 >> Issue (5): 264-274.doi: 10.12461/PKU.DXHX202511071

所属专题： 第5届全国大学生化学实验创新设计大赛

专题 上一篇    

基于“双极”技术的电势-pH图解析与电化学性能优化基础实验

钟依洁, 童禹润, 汪伟涛, 乔儒, 张璟, 胡恩来, 宫培军   

  1. 浙江师范大学化学与材料科学学院, 浙江 金华 321000
  • 收稿日期:2025-11-13 录用日期:2026-02-26 发布日期:2026-05-21
  • 通讯作者: 张璟, 胡恩来, 宫培军 E-mail:jingzhang@zjnu.edu.cn;huenlai@zjnu.edu.cn;skygpj@zjnu.cn Jing Zhang, Enlai Hu, Peijun Gong
  • 基金资助:
    省级大学生创新创业训练计划支持项目(S202510345056)；浙江师范大学教学改革项目(2024-32,2025-11)；浙江师范大学实验技术研究项目(2026-10)

Basic experiment for Pourbaix diagram analysis and electrochemical performance optimization based on “bipolar” technology

Yijie Zhong, Yurun Tong, Weitao Wang, Ru Qiao, Jing Zhang, Enlai Hu, Peijun Gong   

  1. College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321000, Zhejiang Province, China
  • Received:2025-11-13 Accepted:2026-02-26 Published:2026-05-21
  • Contact: Jing Zhang, Enlai Hu, Peijun Gong E-mail:jingzhang@zjnu.edu.cn;huenlai@zjnu.edu.cn;skygpj@zjnu.cn

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摘要： 本实验针对无机化学电势-pH图(也称Pourbaix图)教学难点，融合“双极”技术设计可视化实验。以海藻酸钠为原料合成双极膜并装配电池，探究pH与过电位对电池电压的影响。本实验采用线上线下混合教学与分层拓展实验的模式，实现跨学科知识融合。实验操作简便、试剂安全、成本低，可强化学生理论认知与创新思维，适合本科教学推广。

关键词: 电势-pH图, 双极膜, 固态电池, 海藻酸钠

Abstract: This study addresses the pedagogical challenges associated with Pourbaix diagrams in inorganic chemistry by incorporating bipolar membrane technology to develop a visualized experimental approach. Utilizing sodium alginate as the raw material, we fabricated a bipolar membrane and constructed an electrochemical cell to systematically investigate the effects of pH and overpotential on cell voltage. The experiment employs a blended online-offline teaching methodology with tiered experimental modules, facilitating interdisciplinary knowledge integration. Characterized by operational simplicity, reagent safety, and cost-effectiveness, this approach enhances students’ theoretical understanding and innovative thinking, making it particularly suitable for undergraduate chemistry education.

Key words: Pourbaix diagram, Bipolar membrane, Solid-state battery, Sodium alginate