Cited by 235Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisClay minerals and soil interactions

Methodology for Synthesizing Crystalline Metallosilicates with Expanded Pore Windows Through Molecular Alkoxysilylation of Zeolitic Lamellar Precursors

Wu, Peng, Ruan, Juanfang, Wang, Lingling, Wu, LeiLei, Wang, Yong, Liu, Yueming, Fan, Weibin, He, Mingyuan +2 more·2008·Journal of the American Chemical Society

Abstract

Postalkoxysilylation with diethoxydimethylsilane has been carried out on the zeolitic lamellar precursors of various topologies such as MWW, FER, CDO and MCM-47 aiming to construct new crystalline structures with expanded pore apertures between the layers. The silylation process and the crystalline and pore structures of the resulting materials have been investigated with the techniques of XRD, IR, (13)C and (29)Si MAS NMR, ICP, SEM, HRTEM, elemental analyses, and N 2 adsorption. In contrast to forming known three-dimensional zeolite structures after direct calcination of the lamellar precursors, the silylation led to new crystalline structures with opener pores, as evidenced by the shift of layer-related diffractions to the lower-angle region in XRD patterns and the enlarged interlayer pores found by HRTEM images. After optimizing the treatment conditions, particularly the amount of silane agent, a maximum and homogeneous silylation was realized, which guaranteed the phase purity in interlayer expanded zeolites. The expanded structures were well preserved after calcination at 823 K or reflux in water for 1 to 2 weeks, indicating a high thermal stability and also a hydrothermal stability. The interlayer expanded zeolites prepared from the metallosilicate precursors of MWW topology exhibited higher catalytic activities in the redox and solid acid-catalyzed reactions of bulky molecules than that of their counterparts with conventional MWW topology.

Integrity signals

Registry

Crossref · 10.1021/ja0758739

Cites

0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • New zeolites can be obtained by topotactic transformation in which labile atoms are removed by mild secondary treatments followed by condensation or pillarization of remaining zeolitic layers, providing new fully ordered microporous materials.

    “On the other hand, new zeolites can be obtained by topotactic transformation in which some labile atoms are removed by mild secondary treatments followed by condensation or pillarization of the remaining zeolitic layers, providing new fully ordered microporous materials.72,103,124−126”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wu, P., Ruan, J., Wang, L., Wu, L., Wang, Y., Liu, Y., Fan, W., He, M., Terasaki, O., & Tatsumi, T.
Affiliations
Tokyo Institute of Technology (JP)
Venue
Journal of the American Chemical Society
Published
2008-06-04
Volume
130
Issue
26
Pages
8178-8187
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2088558444
Cited by
235
References
0
Citations by year
2026: 8 · 2025: 6 · 2024: 9 · 2023: 5 · 2022: 13 · 2021: 11 · 2020: 18 · 2019: 10 · 2018: 14 · 2017: 14 · 2016: 13 · 2015: 24 · 2014: 23 · 2013: 20 · 2012: 12
FWCI
7.08
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
  • Physical Sciences › Materials Science › Biomaterials › Clay minerals and soil interactions
Keywords
metallosilicates, diethoxydimethylsilane, calcination stability, hydrothermal stability, heterogeneous acid catalysis, redox catalysis

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