Preparation of Polymer Quantum Dots and Their Modification of Zn-MnO<sub>2</sub> Cathode Performance——A Comprehensive Experimental Design for Undergraduate Chemistry

DENG Ya-ting; YANG Zong-xian; WEI Ji-shi

doi:10.14028/j.cnki.1003-3726.2026.26.055

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Preparation of Polymer Quantum Dots and Their Modification of Zn-MnO₂ Cathode Performance——A Comprehensive Experimental Design for Undergraduate Chemistry

更新时间：2026-07-06

- Preparation of Polymer Quantum Dots and Their Modification of Zn-MnO₂ Cathode Performance——A Comprehensive Experimental Design for Undergraduate Chemistry
- Polymer Bulletin Vol. 39, Issue 7, Pages: 1260-1268(2026)
- 作者机构：
  
  河南大学化学与分子科学学院　开封 475004
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2026.26.055
  CLC：
- Received：30 January 2026，
  
  Accepted：12 March 2026，
  
  Online First：28 May 2026，
  
  Published：20 July 2026
- 稿件说明：
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邓雅婷, 杨宗献, 魏济时. 聚合物量子点的制备及其对Zn-MnO2正极性能的改性：一个大学化学综合实验设计. 高分子通报, 2026, 39(7), 1260–1268.

Deng, Y. T.; Yang, Z. X.; Wei, J. S. Preparation of polymer quantum dots and their modification of Zn-MnO2 cathode performance—a comprehensive experimental design for undergraduate chemistry. Polym. Bull. (in Chinese), 2026, 39(7), 1260–1268.
邓雅婷, 杨宗献, 魏济时. 聚合物量子点的制备及其对Zn-MnO2正极性能的改性：一个大学化学综合实验设计. 高分子通报, 2026, 39(7), 1260–1268. DOI： 10.14028/j.cnki.1003-3726.2026.26.055.

Deng, Y. T.; Yang, Z. X.; Wei, J. S. Preparation of polymer quantum dots and their modification of Zn-MnO2 cathode performance—a comprehensive experimental design for undergraduate chemistry. Polym. Bull. (in Chinese), 2026, 39(7), 1260–1268. DOI： 10.14028/j.cnki.1003-3726.2026.26.055.

摘要

融合材料合成、表征与性能测试于一体，设计了一个适合高年级本科生的大学化学综合实验。以聚乙烯亚胺(polyethyleneimine，PEI)和对苯二酚为原料，在水相体系中通过自组装和交联制备具有荧光特性的氨基聚合物量子点(amino polymer dots，APDs)，并采用紫外–可见吸收光谱、荧光光谱和红外光谱等光谱手段以及透射电子显微镜等对其光学特性和结构特征进行表征。进一步将APDs包覆于

-MnO

表面构建复合正极材料，组装Zn-MnO

电池，通过循环伏安、恒流充放电等电化学测试方法，探究APDs对电极材料比容量、倍率性能及循环稳定性的影响。本实验将聚合物量子点的合成、表征与应用引入本科教学，有助于学生理解界面调控对储能性能的优化机制，并系统训练学生的材料制备、仪器操作与数据分析等综合实践能力。

Abstract

This experiment integrates material synthesis

characterization

and performance testing into a comprehensive undergraduate chemistry laboratory designed for senior students to conduct. In this study

polyethyleneimine (PEI) and hydroquinone were used as raw materials to prepare fluorescent amino polymer dots (APDs) t

hrough self-assembly and cross-linking in an aqueous system. The optical and structural characteristics of the APDs were investigated using ultraviolet-visible absorption spectroscopy

fluorescence spectroscopy

infrared spectroscopy

and transmission electron microscopy. Subsequently

APDs were coated on the surface of

-MnO

to construct a composite cathode material

and Zn-MnO

batteries were assembled accordingly. Electrochemical measurements

including cyclic voltammetry and galvanostatic charge-discharge tests

were performed to investigate the effects of the APDs on the specific capacity

rate performance

and cycling stability of the cathode material. This experiment integrates the synthesis

characterization

and application of polymer quantum dots into undergraduate teaching

which helps students understand the optimization mechanism of interface regulation on energy storage performance and systematically trains their comprehensive practical abilities in material preparation

instrument operation

and data analysis.

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Keywords

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Preparation of Polymer Quantum Dots and Their Modification of Zn-MnO2 Cathode Performance——A Comprehensive Experimental Design for Undergraduate Chemistry

DOI：10.14028/j.cnki.1003-3726.2026.26.055

摘要

Abstract

关键词

Keywords

references

Preparation of Polymer Quantum Dots and Their Modification of Zn-MnO₂ Cathode Performance——A Comprehensive Experimental Design for Undergraduate Chemistry