The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Upcycling Single-Use Polyethylene into High-Quality Liquid Products
Open accessAbstract
High Resolution Image Download MS PowerPoint Slide Our civilization relies on synthetic polymers for all aspects of modern life; yet, inefficient recycling and extremely slow environmental degradation of plastics are causing increasing concern about their widespread use. After a single use, many of these materials are currently treated as waste, underutilizing their inherent chemical and energy value. In this study, energy-rich polyethylene (PE) macromolecules are catalytically transformed into value-added products by hydrogenolysis using well-dispersed Pt nanoparticles (NPs) supported on SrTiO 3 perovskite nanocuboids by atomic layer deposition. Pt/SrTiO 3 completely converts PE ( M n = 8000–158,000 Da) or a single-use plastic bag ( M n = 31,000 Da) into high-quality liquid products, such as lubricants and waxes, characterized by a narrow distribution of oligomeric chains, at 170 psi H 2 and 300 °C under solvent-free conditions for reaction durations up to 96 h. The binding of PE onto the catalyst surface contributes to the number averaged molecular weight ( M n ) and the narrow polydispersity ( Đ ) of the final liquid product. Solid-state nuclear magnetic resonance of 13 C-enriched PE adsorption studies and density functional theory computations suggest that PE adsorption is more favorable on Pt sites than that on the SrTiO 3 support. Smaller Pt NPs with higher concentrations of undercoordinated Pt sites over-hydrogenolyzed PE to undesired light hydrocarbons.
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Cited by
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Metadata
- Authors
- Celik, G., Kennedy, R. M., Hackler, R. A., Ferrandon, M., Tennakoon, A., Patnaik, S., LaPointe, A. M., Ammal, S. C., Heyden, A., Perras, F. A., Pruski, M., Scott, S. L., Poeppelmeier, K. R., Sadow, A. D., & Delferro, M.
- Venue
- ACS Central Science
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-10-23
- Volume
- 5
- Issue
- 11
- Pages
- 1795-1803
- ISSN
- 2374-7943 (ISSN-L)
- 2374-7951
- OpenAlex
- W2981503372
- Cited by
- 561
- References
- 31
- FWCI
- 13.27
- Type
- journal article
- Language
- en
- Open access
- diamond
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- Celik, G., Kennedy, R. M., Hackler, R. A., Ferrandon, M., Tennakoon, A., Patnaik, S., LaPointe, A. M., Ammal, S. C., Heyden, A., Perras, F. A., Pruski, M., Scott, S. L., Poeppelmeier, K. R., Sadow, A. D., & Delferro, M. (2019). Upcycling Single-Use Polyethylene into High-Quality Liquid Products. ACS Central Science. https://doi.org/10.1021/acscentsci.9b00722
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