Search Results - "Marina G. Shelyapina"
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Hydrogen Diffusion on, into and in Magnesium Probed by DFT: A Review
Published in Hydrogen (01-09-2022)“…Hydrogen is an energy carrier that can be a sustainable solution for alternative energy with zero greenhouse gas emissions. Hydrogen storage is a key point for…”
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Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications
Published in Minerals (Basel) (01-12-2022)“…Clinoptilolite is one of the most common, widespread and abundant zeolites in nature. Its availability, low cost, and outstanding ion exchange properties make…”
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Nanoconfined Water in Pillared Zeolites Probed by 1H Nuclear Magnetic Resonance
Published in International journal of molecular sciences (01-11-2023)“…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)…”
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4
NMR Study of Intercalates and Grafted Organic Derivatives of H2La2Ti3O10
Published in Molecules (Basel, Switzerland) (10-11-2020)“…The protonated perovskite-like titanate H2La2Ti3O10 has been used to produce organic-inorganic hybrids with simple organic molecules: methylamine, methanol,…”
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5
1H NMR Study of the HCa2Nb3O10 Photocatalyst with Different Hydration Levels
Published in Molecules (Basel, Switzerland) (30-09-2021)“…The photocatalytic activity of layered perovskite-like oxides in water splitting reaction is dependent on the hydration level and species located in the…”
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Comprehensive Analysis of the Copper Exchange Implemented in Ammonia and Protonated Forms of Mordenite Using Microwave and Conventional Methods
Published in Molecules (Basel, Switzerland) (20-11-2019)“…This article presents the results of a comprehensive study of copper-exchanged mordenite samples prepared from its ammonia and protonated forms (Si/Al = 10)…”
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Local Structures of Two-Dimensional Zeolites-Mordenite and ZSM-5-Probed by Multinuclear NMR
Published in Molecules (Basel, Switzerland) (14-10-2020)“…Mesostructured pillared zeolite materials in the form of lamellar phases with a crystal structure of mordenite (MOR) and ZSM-5 (MFI) were grown using CTAB as…”
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Active Sites in H-Mordenite Catalysts Probed by NMR and FTIR
Published in Catalysts (01-02-2023)“…Mordenites are widely used in catalysis and environmental protection. The catalytic properties of mordenite are largely determined by the composition of its…”
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Bimetallic Copper-Silver Systems Supported on Natural Clinoptilolite: Long-Term Changes in Nanospecies’ Composition and Stability
Published in Inorganics (04-03-2022)“…Long-term changes in species of copper-silver bimetallic systems on natural clinoptilolite obtained by ion exchange of Cu2+ and Ag+ and then reduced at…”
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10
Short-Range Structure of Ti0.63V0.27Fe0.10D1.73 from Neutron Total Scattering and Reverse Monte Carlo Modelling
Published in Energies (Basel) (01-04-2020)“…Ti-V-based body-centered cubic (BCC) alloys have potential for large-scale hydrogen storage if expensive vanadium is substituted with much cheaper…”
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11
DFT calculations of hydrogen diffusion and phase transformations in magnesium
Published in Journal of alloys and compounds (25-09-2015)“…[Display omitted] •Hydrogen diffusion in hcp, bcc, and fcc Mg-lattices was theoretically determined.•For the hcp lattice the calculated diffusion coefficient…”
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12
Nanoconfined Water in Pillared Zeolites Probed by [sup.1]H Nuclear Magnetic Resonance
Published in International journal of molecular sciences (01-11-2023)“…Here, we report the results of our [sup.1]H nuclear magnetic resonance study of the dynamics of water molecules confined in zeolites (mordenite and ZSM-5…”
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13
Water structure and Dynamics in Microporous Mordenite
Published in Applied magnetic resonance (01-08-2024)“…The local ordering and features of the molecular mobility of water confined in voids of a pure silica mordenite were studied using the molecular dynamics…”
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14
Hydrogen induced phase transition in magnesium: An Ab initio study
Published in Journal of alloys and compounds (15-12-2013)“…► Hcp–bcc, bcc–fcc phase transformations in Mg were investigated. ► We found the most probable positions of the hydrogen in different structures of MgHx. ► We…”
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15
Recognition of depth composition profiles of copper-exchanged mordenites applying analytical methods with different depth vision
Published in Materials chemistry and physics (01-10-2019)“…The set of copper-exchanged mordenites with variations in Si/Al atomic ratio (6.5 and 10) and exchangeable counter-cations (Na+, [NH4]+, H+) prepared by…”
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A comparative analysis of natural zeolites from various Cuban and Mexican deposits: structure, composition, thermal properties and hierarchical porosity
Published in Journal of thermal analysis and calorimetry (01-06-2022)“…Cuban and Mexican zeolites are of particular interest from economic outlook because of their exceptional properties and abundance. Here, we present the results…”
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17
On the choice of exchange–correlation functional for the correct band gap calculation in titanium oxide photocatalysts
Published in Results in Chemistry (01-01-2024)“…[Display omitted] In this work the band gap for a set of titanium oxide photocatalysts: TiO2 (rutile, brookite, anatase), SrTiO3, BaTiO3, CaTiO3, MgTiO3,…”
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18
Formation of admixed phase during microwave assisted Cu ion exchange in mordenite
Published in Materials chemistry and physics (01-03-2021)“…Emerging technologies aimed to tune properties of microporous materials, including zeolitic catalysts, involve microwave processing that accelerates chemical…”
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Local Structure of TiO2/2D Mordenite Mesoporous Nanocomposites Probed by NMR
Published in Applied magnetic resonance (01-12-2022)“…New TiO 2 /2D mordenite nanocomposites were synthetized from lamellar mordenite by introduction of titanium tetraetoxide (TEOT) into the interlamellar space…”
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Dynamics of Guest Water Molecules in Pillared Mordenite Studied by 1H NMR Relaxation
Published in Applied magnetic resonance (01-10-2023)“…The dynamics of H 2 O molecules confined in mesopores of about 3.4 nm in size, formed by amorphous SiO 2 pillars separating 2D mordenite nanolayers, was probed…”
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