One-Pot Conversion of Polyester and Carbonate into Formate without External H2
The coconversion of two kinds of waste materials, plastics and CO2, into a single value-added product is an innovative and challenging endeavor that simultaneously achieves the upcycling of plastic waste and reduces CO2 emissions. Herein, we report a one-pot, two-step catalytic process for transforming polyesters, such as poly(glycolic acid), carbonate, and water, into sodium formate with a high yield of 79%, using a commercial Pd/C catalyst. This process involves the aqueous-phase reforming of polyester with water at 250-270 °C and the hydrogenation of NaHCO3 at 150 °C, utilizing H2 generated during the reforming process. Notably, no external H2 or other reactive reagents are required. This strategy can be applied for the coconversion of poly(ethylene terephthalate) (PET), poly(butylene-adipate-co-terephthalate) (PBAT), and commercial biodegradable plastic bags with Na2CO3 obtained from CO2 capture via a NaOH solution, opening up a new path for "turning trash into treasure".
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:146 |
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| Enthalten in: |
Journal of the American Chemical Society - 146(2024), 4 vom: 31. Jan., Seite 2711-2717 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liang, Xuan [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 31.01.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/jacs.3c12345 |
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| funding: |
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| 520 | |a The coconversion of two kinds of waste materials, plastics and CO2, into a single value-added product is an innovative and challenging endeavor that simultaneously achieves the upcycling of plastic waste and reduces CO2 emissions. Herein, we report a one-pot, two-step catalytic process for transforming polyesters, such as poly(glycolic acid), carbonate, and water, into sodium formate with a high yield of 79%, using a commercial Pd/C catalyst. This process involves the aqueous-phase reforming of polyester with water at 250-270 °C and the hydrogenation of NaHCO3 at 150 °C, utilizing H2 generated during the reforming process. Notably, no external H2 or other reactive reagents are required. This strategy can be applied for the coconversion of poly(ethylene terephthalate) (PET), poly(butylene-adipate-co-terephthalate) (PBAT), and commercial biodegradable plastic bags with Na2CO3 obtained from CO2 capture via a NaOH solution, opening up a new path for "turning trash into treasure" | ||
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