过氧化氢–螯合剂体系中二氧化铈纳米颗粒的稳定性演化

梅春霞; 杨雨昕; 张亦伟; 范先锋; 张锴; 晁聪

doi:10.11949/0438-1157.20260475

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过氧化氢–螯合剂体系中二氧化铈纳米颗粒的稳定性演化

材料化学工程与纳米技术 | 更新时间：2026-07-14

- 过氧化氢–螯合剂体系中二氧化铈纳米颗粒的稳定性演化
- Stability evolution of CeO₂ nanoparticles in hydrogen peroxide–chelating agent systems
- 化工学报 2026年
- 作者机构：
  
  1.华北电力大学热电生产过程污染物检测与控制北京市重点实验室，北京，102206
  2.零碳排放能源研究所综合研究院，东京科学大学，目黑区大冈山2-12-1，东京152-8550，日本
  3.材料与过程研究所，工程学院，爱丁堡大学，爱丁堡，英国
- 作者简介：
  
  梅春霞(2001—)，女，硕士研究生，1265546252@qq.com
  晁聪(1993—)，女，博士，副教授，50202852@ncepu.edu.cn
- 基金信息：
  
  中央高校基本科研业务费项目(2024MS011)
- DOI：10.11949/0438-1157.20260475
  中图分类号： TB383
- 收稿：2026-04-07，
  
  修回：2026-07-13，
  
  录用：2026-07-14，
- 稿件说明：
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梅春霞, 杨雨昕, 张亦伟, 等. 过氧化氢–螯合剂体系中二氧化铈纳米颗粒的稳定性演化[J/OL]. 化工学报, 2026.

MEI Chunxia, YANG Yuxin, ZHANG Yiwei, et al. Stability evolution of CeO₂ nanoparticles in hydrogen peroxide–chelating agent systems[J/OL]. CIESC Journal, 2026.
梅春霞, 杨雨昕, 张亦伟, 等. 过氧化氢–螯合剂体系中二氧化铈纳米颗粒的稳定性演化[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20260475.

MEI Chunxia, YANG Yuxin, ZHANG Yiwei, et al. Stability evolution of CeO₂ nanoparticles in hydrogen peroxide–chelating agent systems[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260475.

摘要

二氧化铈（CeO

）纳米颗粒在过氧化氢活化及催化体系中具有重要应用，但其在复杂反应环境中的稳定性及表面化学演化仍缺乏系统认识。本文研究了不同浓度过氧化氢、搅拌速度及螯合剂（乙二胺四乙酸和抗坏血酸）共存条件下，CeO

纳米颗粒粒径与Zeta电位的时间演化，并结合透射电子显微镜（Transmission Electron Microscope，TEM）、X射线光电子能谱（X-ray Photoelectron Spectroscopy，XPS）和电子顺磁共振（Electron Paramagnetic Resonance，EPR）表征分析其表面价态特征与缺陷特征的变化。结果表明，过氧化氢诱导的表面电荷重构主导了CeO

纳米颗粒的聚集行为，而螯合剂与过氧化氢的共同作用可在不显著改变体相结构的前提下显著提升CeO

的胶体稳定性。本研究揭示了CeO

纳米颗粒在过氧化氢-螯合剂体系中的稳定性调控机制，为其在催化与高级氧化反应中的应用提供了参考。

Abstract

Cerium oxide(CeO

) nanoparticles are widely used in hydrogen peroxide activation and catalytic systems; however

their stabil

ity and surface chemical evolution under complex reaction environments remain insufficiently understood. In this study

the time-dependent evolution of particle size and zeta potential of CeO

nanoparticles was systematically investigated under different hydrogen peroxide concentrations

stirring speeds

and in the presence of chelating agents(ethylene diamine tetraacetic acid and ascorbic acid). Transmission electron microscope(TEM)

X-ray photoelectron spectroscopy(XPS)

and electron paramagnetic resonance(EPR) were employed to analyse the corresponding changes in surface valence states and defect characteristics. The results demonstrate that hydrogen peroxide–induced surface charge reconstruction plays a dominant role in governing the aggregation behaviour of CeO

nanoparticles

whereas the synergistic interaction between chelating agents and hydrogen peroxide significantly enhances colloidal stability without inducing pronounced changes in the bulk crystal structure. This study elucidates the stability regulation mechanism of CeO

nanoparticles in hydrogen peroxide-chelating agent systems and provides insights for their rational application in catalytic and advanced oxidation processes.

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