The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Single pot catalyst strategy to branched products via adhesive isomerization and hydrocracking of polyethylene over platinum tungstated zirconia
Open accessAbstract
Abstract Hydrocracking is an insufficiently explored route for chemical recycling of plastics waste. Platinum tungstated zirconia (Pt-WZr) was used in a batch reactor at low temperatures of 250 °C and 30 bar H2 pressure for 1-24 h reaction times using low-density polyethylene (LDPE, Mw∼76 kDa). We find Pt-WZr is a bifunctional catalyst for LDPE hydrocracking leading to higher value branched fuel- and lubricant-ranged alkanes. We demonstrate that the catalyst metal-to-acid site molar ratio (MAB) shifts the product distribution to larger cracked products and increases the isomerization degree in the residual polymer. We propose a new adhesive isomerization mechanism between the metal and Bronsted acid sites in parallel with slow polymer chain cracking, caused by competitive adsorption of the polymer over the liquid products and stereochemical hindrance of methines. This study provides a blueprint on how to engineer effective catalysts for hydrocracking polyolefin plastic wastes using the MAB as a catalyst descriptor.
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Cites
Polyethylene upcycling to long-chain alkylaromatics by tandem hydrogenolysis/aromatization
Zhang, F., Zeng, M., Yappert, R. D., Sun, J., Lee, Y.-H., LaPointe, A. M., Peters, B., Abu-Omar, M. M., & Scott, S. L. (2020) · Science · doi:10.1126/science.abc5441 · Cited by 882
Cited by
Dong, Z., Chen, W., Xu, K., Liu, Y., Wu, J., & Zhang, F. (2022) · ACS Catalysis · doi:10.1021/acscatal.2c04915 · Cited by 269
Balu, R., Dutta, N. K., & Roy Choudhury, N. (2022) · Polymers · doi:10.3390/polym14224788 · Cited by 121
Metadata
- Authors
- Vance, B. C., Kots, P. A., Wang, C., Hinton, Z. R., Quinn, C. M., Epps, T. H., Korley, L. T. J., & Vlachos, D. G.
- Venue
- Applied Catalysis B: Environmental
- Publisher
- Elsevier BV
- Published
- 2021-12
- Volume
- 299
- Pages
- 120483
- ISSN
- 0926-3373 (ISSN-L)
- OpenAlex
- W3176103030
- Cited by
- 176
- References
- 1
- FWCI
- 8.26
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Single pot catalyst strategy to branched products via adhesive isomerization and hydrocracking of polyethylene over platinum tungstated zirconia. https://app.cochat.ai/papers/10.1016/j.apcatb.2021.120483
- The paper
- Vance, B. C., Kots, P. A., Wang, C., Hinton, Z. R., Quinn, C. M., Epps, T. H., Korley, L. T. J., & Vlachos, D. G. (2021). Single pot catalyst strategy to branched products via adhesive isomerization and hydrocracking of polyethylene over platinum tungstated zirconia. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2021.120483
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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