The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Disordered, Sub-Nanometer Ru Structures on CeO2 are Highly Efficient and Selective Catalysts in Polymer Upcycling by Hydrogenolysis
Abstract
Nondegradable polyolefin plastics pose severe environmental threats and thus demand efficient upcycling technologies. In this work, we discovered that low-loading (≤0.25 wt %) Ru/CeO 2 exhibits remarkable catalytic performance in the hydrogenolysis of polypropylene (PP), polyethylene (PE), and n -C 16 H 34 that is superior to high-loading (≥0.5 wt %) Ru/CeO 2 . They possess high PP conversion efficiency (sevenfold increase over current literature reports), low selectivity toward undesired CH 4, and good isomerization ability. In the low-loading range, the intrinsic activity of Ru in PP hydrogenolysis increases as the particle size decreases, opposite of the trend in the high-loading range. Detailed characterization revealed that the abrupt changes in catalytic behaviors coincide with Ru species transitioning from well-defined to highly disordered structures in the low-loading domain. The disordered Ru species were shown to be sub-nanometer in size and cationic. Mechanistically, the regioselectivity and the rate dependence on hydrogen pressure of C–C bond cleavage are different on low- and high-loading Ru/CeO 2, both explained by the higher coverage of adsorbed hydrogen (*H) on low-loading Ru/CeO 2 . This work reveals the remarkable catalytic performance of highly disordered, sub-nanometer, cationic Ru species in polyolefin hydrogenolysis, opening immense opportunities to develop effective, selective, and versatile catalysts for plastic upcycling.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Production, use, and fate of all plastics ever made
Geyer, R., Jambeck, J. R., & Law, K. L. (2017) · Science Advances · doi:10.1126/sciadv.1700782 · Cited by 18,606
Accumulation and fragmentation of plastic debris in global environments
Barnes, D. K. A., Galgani, F., Thompson, R. C., & Barlaz, M. (2009) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2008.0205 · Cited by 6,126
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
Mason, A. H., Motta, A., Das, A., Ma, Q., Bedzyk, M. J., Kratish, Y., & Marks, T. J. (2022) · Nature Communications · doi:10.1038/s41467-022-34707-6 · Cited by 82
Metadata
- Authors
- Chen, L., Meyer, L. C., Kovarik, L., Meira, D., Pereira-Hernandez, X. I., Shi, H., Khivantsev, K., Gutiérrez, O. Y., & Szanyi, J.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2022-04-05
- Volume
- 12
- Issue
- 8
- Pages
- 4618-4627
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W4223498063
- Cited by
- 213
- References
- 3
- FWCI
- 14.05
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
