The DOI matches its Crossref record.
Reversible Tetrahedral−Octahedral Framework Aluminum Transformation in Zeolite Y
Abstract
The hydration of a mildly calcined zeolite Y sample leads to the local destruction of the zeolite lattice. This way, besides the dealumination of the framework, a partial hydrolysis of framework Al−O bonds occurs generating framework connected Al−OH species. This hydrolysis is evidenced by a peak at 3.1 ppm in the 1 H MAS NMR spectrum, which can only be resolved by applying the 1 H spin−echo MAS NMR technique with different echo delay times. These framework Al−OH sites can host water molecules giving rise to octahedrally coordinated Al species seen in the 27 Al MAS NMR spectrum at 0 ppm. The subsequent adsorption of ammonia on this sample after hydration converts this octahedral coordinated Al back to tetrahedral Al sites. In the 27 Al MAS NMR spectrum these species are now seen by the increased line width of the 60 ppm line.
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
Cited by
Challenges on molecular aspects of dealumination and desilication of zeolites
Silaghi, M.-C., Chizallet, C., & Raybaud, P. (2014) · Microporous and Mesoporous Materials · doi:10.1016/j.micromeso.2014.02.040 · Cited by 325
Jones, A. J., Carr, R. T., Zones, S. I., & Iglesia, E. (2014) · Journal of Catalysis · doi:10.1016/j.jcat.2014.01.007 · Cited by 265
Dealumination mechanisms of zeolites and extra-framework aluminum confinement
Silaghi, M.-C., Chizallet, C., Sauer, J., & Raybaud, P. (2016) · Journal of Catalysis · doi:10.1016/j.jcat.2016.04.021 · Cited by 236
The effect of positioning cations on acidity and stability of the framework structure of Y zeolite
Deng, C., Zhang, J., Dong, L., Huang, M., Li, B., Jin, G., Gao, J., Zhang, F., Fan, M., Zhang, L., et al. (2016) · Scientific Reports · doi:10.1038/srep23382 · Cited by 98
Metadata
- Authors
- Wouters, B. H., Chen, T.-H., & Grobet, P. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-10-21
- Volume
- 120
- Issue
- 44
- Pages
- 11419-11425
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1966520599
- Cited by
- 185
- References
- 0
- FWCI
- 3.21
- 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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Reversible Tetrahedral−Octahedral Framework Aluminum Transformation in Zeolite Y. https://app.cochat.ai/papers/10.1021/ja982082l
- The paper
- Wouters, B. H., Chen, T.-H., & Grobet, P. J. (1998). Reversible Tetrahedral−Octahedral Framework Aluminum Transformation in Zeolite Y. Journal of the American Chemical Society. https://doi.org/10.1021/ja982082l
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.
