Small molecules, non-covalent interactions, and confinement

G Buntkowsky, M Vogel - Molecules, 2020 - mdpi.com
This review gives an overview of current trends in the investigation of small guest molecules,
confined in neat and functionalized mesoporous silica materials by a combination of solid …

Static field gradient NMR studies of water diffusion in mesoporous silica

M Weigler, E Winter, B Kresse, M Brodrecht… - Physical Chemistry …, 2020 - pubs.rsc.org
NMR diffusometry is used to ascertain the pore-size dependent water diffusion in MCM-41
and SBA-15 silica over broad temperature ranges. Detailed analysis of 1H and 2H NMR …

Active sites in H-mordenite catalysts probed by NMR and FTIR

MG Shelyapina, EA Krylova, AS Mazur… - Catalysts, 2023 - mdpi.com
Mordenites are widely used in catalysis and environmental protection. The catalytic
properties of mordenite are largely determined by the composition of its crystal framework …

[HTML][HTML] NMR Relaxation to Probe Zeolites: Mobility of Adsorbed Molecules, Surface Acidity, Pore Size Distribution and Connectivity

MG Shelyapina - Molecules, 2024 - mdpi.com
Unique structural and chemical properties, such as ion exchange, developed inner surface,
etc., as well as the wide possibilities and flexibility of regulating these properties, cause a …

Aluminum distribution in mordenite-zeolite framework: A new outlook based on density functional theory calculations

J Antúnez-García, DH Galván, V Petranovskii… - Journal of Solid State …, 2022 - Elsevier
On the basis of the density functional theory (DFT) calculations, the successive isomorphic
substitution of one to six tetrahedrally coordinated Si cations by trivalent Al was …

Nanoconfined Water in Pillared Zeolites Probed by 1H Nuclear Magnetic Resonance

MG Shelyapina, DY Nefedov, AO Antonenko… - International Journal of …, 2023 - mdpi.com
Here, we report the results of our 1H nuclear magnetic resonance study of the dynamics of
water molecules confined in zeolites (mordenite and ZSM-5 structures) with hierarchical …

Dynamics of Guest Water Molecules in Pillared Mordenite Studied by 1H NMR Relaxation

MG Shelyapina, DY Nefedov, AO Antonenko… - Applied Magnetic …, 2023 - Springer
The dynamics of H2O molecules confined in mesopores of about 3.4 nm in size, formed by
amorphous SiO2 pillars separating 2D mordenite nanolayers, was probed by 1H nuclear …

NMR Study of Intercalates and Grafted Organic Derivatives of H2La2Ti3O10

MG Shelyapina, OI Silyukov, IP Lushpinskaia… - Molecules, 2020 - mdpi.com
The protonated perovskite-like titanate H2La2Ti3O10 has been used to produce organic-
inorganic hybrids with simple organic molecules: methylamine, methanol …

Local Structure of TiO2/2D Mordenite Mesoporous Nanocomposites Probed by NMR

MG Shelyapina, A Mazur, RI Yocupicio-Gaxiola… - Applied Magnetic …, 2022 - Springer
New TiO2/2D mordenite nanocomposites were synthetized from lamellar mordenite by
introduction of titanium tetraetoxide (TEOT) into the interlamellar space with further …

A comparative analysis of natural zeolites from various Cuban and Mexican deposits: Structure, composition, thermal properties and hierarchical porosity

IA Zvereva, MG Shelyapina, M Chislov… - Journal of Thermal …, 2022 - Springer
Cuban and Mexican zeolites are of particular interest from economic outlook because of
their exceptional properties and abundance. Here, we present the results of the comparative …