电催化乙二醇氧化制乙醇酸：机理与策略

doi:10.61558/2993-074X.3624

电化学（中英文） ›› 2026, Vol. 32 ›› Issue (10): 2614004. doi: 10.61558/2993-074X.3624

• 综述 • 上一篇

电催化乙二醇氧化制乙醇酸：机理与策略

张曼^*()(), 李雪, 彭馨玉, 王琳, 陈文文, 阳耀月^*()

西南民族大学化学与环境学院，国家民委基础化学重点实验室，四川成都 610041

收稿日期:2026-06-11 修回日期:2026-07-20 接受日期:2026-09-07 发布日期:2026-09-07 出版日期:2026-10-28

Electrocatalytic Oxidation of Ethylene Glycol to Glycolic Acid: From Mechanism and Catalyst Design to Emerging Neutral Electrolyte Systems

Man Zhang^*()(), Xue Li, Xin-Yu Peng, Lin Wang, Wen-Wen Chen, Yao-Yue Yang^*()

Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, Sichuan Province, China

Received:2026-06-11 Revised:2026-07-20 Accepted:2026-09-07 Online:2026-09-07 Published:2026-10-28
Contact: *Yao-Yue Yang, Email address: yaoyueyoung@swun.edu.cn (Y. Y.); Man Zhang, Email address: zhangm289@swun.edu.cn (M. Z.)
About author:Author contributions
Man Zhang investigated information and wrote the original draft. Xue Li and Xin-Yu Peng prepared the figures. Lin Wang and Wen-Wen Chen investigated documents. Yao-Yue Yang wrote review and edited paper. All authors discussed the content and approved the final version.

摘要/Abstract

摘要：

处理聚对苯二甲酸乙二醇酯废弃物既非环境友好，又损失碳资源。其经碱性解聚可得对苯二甲酸和乙二醇，利用可再生电力驱动乙二醇电催化氧化制取乙醇酸——即生物可降解聚乙醇酸的单体，是一条可持续转化路径。然而，乙二醇氧化反应存在多条竞争反应途径，既可能生成C2产物（乙醇酸和草酸），也可能生成C1产物（甲酸和二氧化碳），因此，如何实现高选择性生成乙醇酸是该领域的核心难题。本文综述了乙二醇选择性电氧化制乙醇酸的最新研究进展，重点涵盖催化剂设计策略、反应机理认识以及电解质体系的演变与发展。在催化剂设计方面，贵金属（铂、钯、金）及其复合物在碱性介质中可实现90%以上的乙醇酸选择性，法拉第效率接近95%，多主元合金为调控活性位点的电子结构提供了新机遇。借助原位衰减全反射表面增强红外吸收光谱、在线质谱和密度泛函理论计算等机理研究手段，阐明关键中间体（铂表面物种CH₂OH-CHO、OCH₂-CHO）及竞争活性位点，其中吸附态一氧化碳（CO_ad）可作为反应路径的特征指示物。最后，本文讨论了该领域面临的关键挑战，指出了未来发展方向是通过开发低成本、高稳定性且高选择性的催化体系，并解决大规模生产与产物纯化关键问题。

关键词: 电催化乙二醇氧化, 乙醇酸, 电催化选择性, 法拉第效率, 电解质, 升级回收

Abstract:

Polyethylene terephthalate (PET) waste represents both an environmental burden and a loss of carbon resources. Alkaline depolymerization of PET yields terephthalic acid and ethylene glycol (EG). Electrocatalytic oxidation of EG to glycolic acid (GA), the monomer of biodegradable polyglycolic acid (PGA), offers a sustainable route driven by renewable electricity. However, the ethylene glycol oxidation reaction (EGOR) involves competing pathways toward C2 products (GA and oxalic acid) and C1 products (formic acid and CO₂), making selective GA production a central challenge. This review provides a comprehensive overview of recent progress in selective EG-to-GA electrooxidation from catalyst design, mechanistic understanding, and electrolyte system evolution.

Key words: Electrocatalytic oxidation of ethylene glycol, Glycolic acid, Electrocatalytic selectivity, Faradaic Efficiency, Electrolyte, Upcycling

张曼, 李雪, 彭馨玉, 王琳, 陈文文, 阳耀月. 电催化乙二醇氧化制乙醇酸：机理与策略[J]. 电化学（中英文）, 2026, 32(10): 2614004.

Man Zhang, Xue Li, Xin-Yu Peng, Lin Wang, Wen-Wen Chen, Yao-Yue Yang. Electrocatalytic Oxidation of Ethylene Glycol to Glycolic Acid: From Mechanism and Catalyst Design to Emerging Neutral Electrolyte Systems[J]. Journal of Electrochemistry, 2026, 32(10): 2614004.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.3624

https://electrochem.xmu.edu.cn/CN/Y2026/V32/I10/2614004

图/表 9

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电催化乙二醇氧化制乙醇酸：机理与策略

Electrocatalytic Oxidation of Ethylene Glycol to Glycolic Acid: From Mechanism and Catalyst Design to Emerging Neutral Electrolyte Systems

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