Chemical Upcycling of PET Waste towards Terephthalate Redox Nanoparticles for Energy Storage
dc.contributor.author | Goujon, Nicolas | |
dc.contributor.author | Demarteau, Jérémy | |
dc.contributor.author | López de Pariza Sanz, Xabier | |
dc.contributor.author | Casado Pérez, Nerea | |
dc.contributor.author | Sardon Muguruza, Haritz | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.date.accessioned | 2021-12-27T13:06:03Z | |
dc.date.available | 2021-12-27T13:06:03Z | |
dc.date.issued | 2021-11-03 | |
dc.identifier.citation | Sustainable Chemistry 2(4) : 610-621 (2021) | es_ES |
dc.identifier.issn | 2673-4079 | |
dc.identifier.uri | http://hdl.handle.net/10810/54745 | |
dc.description.abstract | Over 30 million ton of poly(ethylene terephthalate) (PET) is produced each year and no more than 60% of all PET bottles are reclaimed for recycling due to material property deteriorations during the mechanical recycling process. Herein, a sustainable approach is proposed to produce redox-active nanoparticles via the chemical upcycling of poly(ethylene terephthalate) (PET) waste for application in energy storage. Redox-active nanoparticles of sizes lower than 100 nm were prepared by emulsion polymerization of a methacrylic-terephthalate monomer obtained by a simple methacrylate functionalization of the depolymerization product of PET (i.e., bis-hydroxy(2-ethyl) terephthalate, BHET). The initial cyclic voltammetry results of the depolymerization product of PET used as a model compound show a reversible redox process, when using a 0.1 M tetrabutylammonium hexafluorophosphate/dimethyl sulfoxide electrolyte system, with a standard redox potential of −2.12 V vs. Fc/Fc+. Finally, the cycling performance of terephthalate nanoparticles was investigated using a 0.1 M TBAPF6 solution in acetonitrile as electrolyte in a three-electrode cell. The terephthalate anode electrode displays good cycling stability and performance at high C-rate (i.e., ≥5C), delivering a stable specific discharge capacity of 32.8 mAh.g−1 at a C-rate of 30 C, with a capacity retention of 94% after 100 cycles. However, a large hysteresis between the specific discharge and charge capacities and capacity fading are observed at lower C-rate (i.e., ≤2C), suggesting some irreversibility of redox reactions associated with the terephthalate moiety, in particular related to the oxidation process. | es_ES |
dc.description.sponsorship | NC would like to thank the University of the Basque Country for funding through a specialization of research staff fellowship (ESPDOC 19/99). JD thanks WBI International and the Gobierno Vasco/Eusko Jaurlaritza (IT 999–16) for fundings. NG acknowledges the funding from the European Union’s Horizon 2020 framework programme under the Marie Skłodowska-Curie agreement No. 101028682. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/101028682 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | poly(ethylene terephthalate) | es_ES |
dc.subject | PET waste | es_ES |
dc.subject | upcycling approach | es_ES |
dc.subject | redox-active nanoparticles | es_ES |
dc.title | Chemical Upcycling of PET Waste towards Terephthalate Redox Nanoparticles for Energy Storage | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2021-12-23T15:06:30Z | |
dc.rights.holder | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2673-4079/2/4/34 | es_ES |
dc.identifier.doi | 10.3390/suschem2040034 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia |
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Except where otherwise noted, this item's license is described as © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).