Metal sites in zeolites: synthesis, characterization, and catalysis

Q Zhang, S Gao, J Yu - Chemical reviews, 2022 - ACS Publications
Zeolites with ordered microporous systems, distinct framework topologies, good spatial
nanoconfinement effects, and superior (hydro) thermal stability are an ideal scaffold for …

The concept of active site in heterogeneous catalysis

C Vogt, BM Weckhuysen - Nature Reviews Chemistry, 2022 - nature.com
Catalysis is at the core of chemistry and has been essential to make all the goods
surrounding us, including fuels, coatings, plastics and other functional materials. In the near …

Molecular views on mechanisms of brønsted acid-catalyzed reactions in zeolites

C Chizallet, C Bouchy, K Larmier… - Chemical …, 2023 - ACS Publications
The Brønsted acidity of proton-exchanged zeolites has historically led to the most impactful
applications of these materials in heterogeneous catalysis, mainly in the fields of …

Water structures on acidic zeolites and their roles in catalysis

Q Liu, JA van Bokhoven - Chemical Society Reviews, 2024 - pubs.rsc.org
The local reaction environment of catalytic active sites can be manipulated to modify the
kinetics and thermodynamic properties of heterogeneous catalysis. Because of the unique …

Distribution of Aluminum Species in Zeolite Catalysts: 27Al NMR of Framework, Partially-Coordinated Framework, and Non-Framework Moieties

K Chen, Z Gan, S Horstmeier… - Journal of the American …, 2021 - ACS Publications
The structure of aluminum-containing moieties in and within zeolite H-ZSM-5 catalysts is a
complex function of the elemental composition of the catalyst, synthesis conditions …

Stable and reusable hierarchical ZSM-5 zeolite with superior performance for olefin oligomerization when partially coked

HO Mohamed, RK Parsapur, I Hita, JL Cerrillo… - Applied Catalysis B …, 2022 - Elsevier
The character of coke is typically regarded as a “deactivator” in zeolite catalysis. We report
the interdependence of coke nature and location with its true character in the mechanisms of …

Unravelling the reactivity of framework Lewis acid sites towards methanol activation on H‐ZSM‐5 zeolite with solid‐state NMR spectroscopy

M Hu, C Wang, Y Chu, Q Wang, S Li… - Angewandte Chemie …, 2022 - Wiley Online Library
Understanding the acid sites on zeolites is vital for the establishment of catalyst structure–
activity relationship and exploration of their potential applications in heterogeneous …

Precise Structural and Dynamical Details in Zeolites Revealed by Coupling-Edited 1H–17O Double Resonance NMR Spectroscopy

Y Ji, K Chen, X Han, X Bao, G Hou - Journal of the American …, 2024 - ACS Publications
Despite the extensive industrial and research interests in zeolites, their intrinsic catalytic
nature is not fully understood due to the complexity of the hydroxyl-aluminum moieties. 17O …

Dynamical Equilibrium between Brønsted and Lewis Sites in Zeolites: Framework‐Associated Octahedral Aluminum

M **, M Ravi, C Lei, CJ Heard, F Brivio… - Angewandte Chemie …, 2023 - Wiley Online Library
While the structures of Brønsted acid sites (BAS) in zeolites are well understood, those of
Lewis acid sites (LAS) remain an active area of investigation. Under hydrated conditions, the …

Structure and framework association of Lewis acid sites in MOR zeolite

AV Yakimov, M Ravi, R Verel… - Journal of the …, 2022 - ACS Publications
Zeolites, although key materials used in industrial processes, remain poorly understood on a
molecular level despite their well-defined crystal lattices. In fact, obtaining a direct …