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Article: Modulating Adsorption Behavior by Single‐site Pt on RuO2 for Efficient Electrosynthesis of Glycolic Acid from Plastic Wastes

TitleModulating Adsorption Behavior by Single‐site Pt on RuO2 for Efficient Electrosynthesis of Glycolic Acid from Plastic Wastes
Authors
KeywordsElectrosynthesis
Glycolic acid
Plastic wastes
Polyethylene terephthalate
Single-site
Issue Date22-Feb-2025
PublisherWiley
Citation
Angewandte Chemie International edition, 2025 How to Cite?
Abstract

Electrochemical upcycling of polyethylene terephthalate (PET) wastes into valuable glycolic acid (GA) is an ideal solution for resource utilization. However, simultaneously achieving high activity and selectivity remains challenging due to the over-oxidation and C−C cleavage during ethylene glycol (EG) oxidation in PET hydrolysate. Herein, we develop an atomically isolated Pt on RuO2 (Pt1/RuO2) catalyst composed of high-density Pt−Ru interfaces that ensure single-site adsorption of EG, enrich surface *OH coverage and weaken *CO−CH2OH intermediate adsorption, thereby synergistically promoting GA generation. Specifically, Pt1/RuO2 delivers a remarkable mass activity of 8.09 A/mgPt, as well as a high GA Faradaic efficiency (95.3 %) and selectivity (96.9 %). Under membrane electrode assembly conditions, Pt1/RuO2 realizes a stable electrolysis over 500 h at 6 A with a GA yield rate of 4.06 g h−1. In-depth theoretical and in situ spectroscopic investigations reveal the synergy between isolated Pt and oxophilic RuO2 plays a crucial role in high-efficiency EG-to-GA conversion. This study offers valuable insights for the rational design of advanced catalysts for GA synthesis from PET wastes via a single-site doped bimetallic strategy.


Persistent Identifierhttp://hdl.handle.net/10722/355263
ISSN
2023 Impact Factor: 16.1
2023 SCImago Journal Rankings: 5.300

 

DC FieldValueLanguage
dc.contributor.authorLiu, Fulai-
dc.contributor.authorZhou, Jingtao-
dc.contributor.authorGao, Xutao-
dc.contributor.authorShi, Rui-
dc.contributor.authorGuo, Zhengxiao-
dc.contributor.authorTse, Edmund CM-
dc.contributor.authorChen, Yong-
dc.date.accessioned2025-04-01T00:35:18Z-
dc.date.available2025-04-01T00:35:18Z-
dc.date.issued2025-02-22-
dc.identifier.citationAngewandte Chemie International edition, 2025-
dc.identifier.issn1433-7851-
dc.identifier.urihttp://hdl.handle.net/10722/355263-
dc.description.abstract<p>Electrochemical upcycling of polyethylene terephthalate (PET) wastes into valuable glycolic acid (GA) is an ideal solution for resource utilization. However, simultaneously achieving high activity and selectivity remains challenging due to the over-oxidation and C−C cleavage during ethylene glycol (EG) oxidation in PET hydrolysate. Herein, we develop an atomically isolated Pt on RuO<sub>2</sub> (Pt<sub>1</sub>/RuO<sub>2</sub>) catalyst composed of high-density Pt−Ru interfaces that ensure single-site adsorption of EG, enrich surface *OH coverage and weaken *CO−CH<sub>2</sub>OH intermediate adsorption, thereby synergistically promoting GA generation. Specifically, Pt<sub>1</sub>/RuO<sub>2</sub> delivers a remarkable mass activity of 8.09 A/mg<sub>Pt</sub>, as well as a high GA Faradaic efficiency (95.3 %) and selectivity (96.9 %). Under membrane electrode assembly conditions, Pt<sub>1</sub>/RuO<sub>2</sub> realizes a stable electrolysis over 500 h at 6 A with a GA yield rate of 4.06 g h<sup>−1</sup>. In-depth theoretical and in situ spectroscopic investigations reveal the synergy between isolated Pt and oxophilic RuO<sub>2</sub> plays a crucial role in high-efficiency EG-to-GA conversion. This study offers valuable insights for the rational design of advanced catalysts for GA synthesis from PET wastes via a single-site doped bimetallic strategy.<br></p>-
dc.languageeng-
dc.publisherWiley-
dc.relation.ispartofAngewandte Chemie International edition-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectElectrosynthesis-
dc.subjectGlycolic acid-
dc.subjectPlastic wastes-
dc.subjectPolyethylene terephthalate-
dc.subjectSingle-site-
dc.titleModulating Adsorption Behavior by Single‐site Pt on RuO2 for Efficient Electrosynthesis of Glycolic Acid from Plastic Wastes-
dc.typeArticle-
dc.identifier.doi10.1002/anie.202422183-
dc.identifier.scopuseid_2-s2.0-85219583287-
dc.identifier.eissn1521-3773-
dc.identifier.issnl1433-7851-

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