Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The Significant Differences in Solvation Thermodynamics of C1–C3 Oxygenates in Hydrophilic versus Hydrophobic Pores of a Hydrophilic Ti-FAU Zeolite Model

Journal Article · · Journal of Physical Chemistry. C

The rates of catalytic reactions have been observed to be dramatically different in zeolites, depending on if they are hydrophobic or hydrophilic. Hypotheses aimed at explaining this behavior have pointed to various solvent molecule and zeolite properties as having influence on entropy. Herein, the influence of various solvent and adsorbate properties on the solvation energies, entropies, and free energies of eleven C1-C3 oxygenates in hydrophobic and hydrophilic pores within a hydrophilic model of Ti-FAU zeolite are tested. The results indicate significant variation in the calculated solvation thermodynamics depending on the adsorbate type, as well as if it is bound within a hydrophobic or hydrophilic pore. Further, while solvation energies are related to solvent-adsorbate interactions, solvation entropies have multiple contributions, and these differ depending on if the adsorbate is in a hydrophobic or hydrophilic pore. Specifically, solvation entropies in hydrophobic pores are related to solvent structural properties, whereas solvation entropies in hydrophilic pores are related to adsorbate polarity. Here, the large range of results obtained from two different pores within one zeolite model with minimal unique adsorption sites suggests that solvation behavior in zeolites is complicated and that the phenomena that control observed performance depend on the zeolite, reaction, and solvent.

Research Organization:
The Ohio State University, Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0021170; SC0025579
OSTI ID:
2481256
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 45 Vol. 128; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (84)

Temperature dependence of TIP3P, SPC, and TIP4P water from NPT Monte Carlo simulations: Seeking temperatures of maximum density journal July 1998
Beyond shape selective catalysis with zeolites: Hydrophobic void spaces in zeolites enable catalysis in liquid water journal January 2013
Defect‐Mediated Ordering of Condensed Water Structures in Microporous Zeolites journal November 2019
Rigid Arrangements of Ionic Charge in Zeolite Frameworks Conferred by Specific Aluminum Distributions Preferentially Stabilize Alkanol Dehydration Transition States journal August 2020
The Mechanism of Glucose Isomerization to Fructose over Sn-BEA Zeolite: A Periodic Density Functional Theory Study journal August 2013
Effect of the damping function in dispersion corrected density functional theory journal March 2011
The role of dispersive forces determining the energetics of adsorption in Ti zeolites journal September 2016
Solvent Effects during the Oxidation of Olefins and Alcohols with Hydrogen Peroxide on Ti-Beta Catalyst: The Influence of the Hydrophilicity–Hydrophobicity of the Zeolite journal June 1996
Mechanistic Insights into the Desorption of Methanol and Dimethyl Ether Over ZSM-5 Catalysts journal December 2017
Enhanced chemical activity and wettability at adjacent Brønsted acid sites in HZSM-5 journal August 2018
Optimizing the surface distribution of acid sites for cooperative catalysis in condensation reactions promoted by water journal October 2021
LAMMPS - a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales journal February 2022
The temperature-dependent structure, hydrogen bonding and other related dynamic properties of the standard TIP3P and CHARMM-modified TIP3P water models journal February 2019
Differences in solvation thermodynamics of oxygenates at Pt/Al2O3 perimeter versus Pt(111) terrace sites journal February 2023
First principles, microkinetic, and experimental analysis of Lewis acid site speciation during ethanol dehydration on Sn-Beta zeolites journal September 2018
Transition state stabilization depends on solvent identity, pore size, and hydrophilicity for epoxidations in zeolites journal January 2022
Identity of the metal oxide support controls outer sphere interactions that change rates and barriers for alkene epoxidations at isolated Ti atoms journal July 2022
A comment on the flexibility of framework in molecular dynamics simulations of zeolites journal October 2009
Aqueous interactions of zeolitic material in acidic and basic solutions journal July 2010
The effect of Si/Al ratio on local and nanoscale water diffusion in H-ZSM-5: A quasielastic neutron scattering and molecular dynamics simulation study journal January 2023
Hydrophilicity-controlled MFI-type zeolite-coated mesh for oil/water separation journal April 2018
Solvent effects on catalytic reactions and related phenomena at liquid-solid interfaces journal November 2021
Molecular Structure and Confining Environment of Sn Sites in Single-Site Chabazite Zeolites journal October 2017
Molecular Views on Mechanisms of Brønsted Acid-Catalyzed Reactions in Zeolites journal March 2023
Small-Pore Zeolites: Synthesis and Catalysis journal May 2018
Free Energies of Catalytic Species Adsorbed to Pt(111) Surfaces under Liquid Solvent Calculated Using Classical and Quantum Approaches journal March 2019
A Classical Molecular Dynamics Study on the Effect of Si/Al Ratio and Silanol Nest Defects on Water Diffusion in Zeolite HY journal May 2021
Insights into Water Adsorption in Potassium-Exchanged X-type Faujasite Zeolite: Molecular Simulation and Experiment journal August 2021
Systematic Optimization of a Force Field for Classical Simulations of TiO 2 –Water Interfaces journal August 2015
Deconstructing the Confinement Effect upon the Organization and Dynamics of Water in Hydrophobic Nanoporous Materials: Lessons Learned from Zeolites journal September 2017
Opportunities in Catalysis over Metal-Zeotypes Enabled by Descriptions of Active Centers Beyond Their Binding Site journal July 2020
Quantification of Intraporous Hydrophilic Binding Sites in Lewis Acid Zeolites and Consequences for Sugar Isomerization Catalysis journal September 2020
Aldol Condensation and Esterification over Ti-Substituted *BEA Zeolite: Mechanisms and Effects of Pore Hydrophobicity journal January 2022
How to Gain Atomistic Insights on Reactions at the Water/Solid Interface? journal May 2022
Effect of Interactions between Alkyl Chains and Solvent Structures on Lewis Acid Catalyzed Epoxidations journal October 2022
Brønsted Acid Strength Does Not Change for Bulk and External Sites of MFI Except for Al Substitution Where Silanol Groups Form journal March 2023
Solvent Polarity and Framework Hydrophobicity of Hf-BEA Zeolites Influence Aldol Addition Rates in Organic Media journal April 2023
Liquid-Phase Modeling in Heterogeneous Catalysis journal January 2018
Modular Pd/Zeolite Composites Demonstrating the Key Role of Support Hydrophobic/Hydrophilic Character in Methane Catalytic Combustion journal April 2019
Distinct Catalytic Reactivity of Sn Substituted in Framework Locations and at Defect Grain Boundaries in Sn-Zeolites journal May 2019
Contrasting Arene, Alkene, Diene, and Formaldehyde Hydrogenation in H-ZSM-5, H-SSZ-13, and H-SAPO-34 Frameworks during MTO journal March 2020
Water-Mediated Heterogeneously Catalyzed Reactions journal December 2019
A Universal Descriptor for the Entropy of Adsorbed Molecules in Confined Spaces journal September 2018
Quantifying Effects of Active Site Proximity on Rates of Methanol Dehydration to Dimethyl Ether over Chabazite Zeolites through Microkinetic Modeling journal December 2021
Dielectric Relaxation and Solvation Dynamics of Water in Complex Chemical and Biological Systems journal June 2000
Analysis of the Reaction Mechanism and Catalytic Activity of Metal-Substituted Beta Zeolite for the Isomerization of Glucose to Fructose journal April 2014
Hydrogen Bonding versus Coordination of Adsorbate Molecules on Ti-Silicalites:  A Density Functional Theory Study journal July 2004
Development and Testing of the OPLS All-Atom Force Field on Conformational Energetics and Properties of Organic Liquids journal January 1996
Ordered Hydrogen-Bonded Alcohol Networks Confined in Lewis Acid Zeolites Accelerate Transfer Hydrogenation Turnover Rates journal October 2020
Structural Characterization of Protonated Water Clusters Confined in HZSM-5 Zeolites journal July 2021
Factors that Determine Zeolite Stability in Hot Liquid Water journal September 2015
Dominant Role of Entropy in Stabilizing Sugar Isomerization Transition States within Hydrophobic Zeolite Pores journal September 2018
Cooperative Effects between Hydrophilic Pores and Solvents: Catalytic Consequences of Hydrogen Bonding on Alkene Epoxidation in Zeolites journal January 2019
Dynamic Reorganization and Confinement of Ti IV Active Sites Controls Olefin Epoxidation Catalysis on Two-Dimensional Zeotypes journal April 2019
Dynamics of Water Trapped between Hydrophobic Solutes journal April 2005
Efficient Approach for the Computational Study of Alcohol and Nitrile Adsorption in H-ZSM-5 journal February 2012
TraPPE-zeo: Transferable Potentials for Phase Equilibria Force Field for All-Silica Zeolites journal November 2013
Deconstructing Hydrogen-Bond Networks in Confined Nanoporous Materials: Implications for Alcohol–Water Separation journal August 2014
A Comparative Study of Structural, Acidic and Hydrophilic Properties of Sn−BEA with Ti−BEA Using Periodic Density Functional Theory journal February 2008
All-Atom Empirical Potential for Molecular Modeling and Dynamics Studies of Proteins journal April 1998
Direct Synthesis and Characterization of Hydrophobic Aluminum-Free Ti−Beta Zeolite journal January 1998
Understanding solvent effects on adsorption and protonation in porous catalysts journal February 2020
Confinement effects and acid strength in zeolites journal May 2021
The shape of water in zeolites and its impact on epoxidation catalysis journal September 2021
Heterogeneous catalytic reaction of microcrystalline cellulose in hydrothermal microwave-assisted decomposition: effect of modified zeolite Beta journal January 2014
Potential and challenges of zeolite chemistry in the catalytic conversion of biomass journal January 2016
Introducing DDEC6 atomic population analysis: part 1. Charge partitioning theory and methodology journal January 2016
Deactivation of Sn-Beta zeolites caused by structural transformation of hydrophobic to hydrophilic micropores during aqueous-phase glucose isomerization journal January 2019
Investigation of dielectric constants of water in a nano-confined pore journal January 2020
Structure and solvation of confined water and water–ethanol clusters within microporous Brønsted acids and their effects on ethanol dehydration catalysis journal January 2020
Influence of an electrified interface on the entropy and energy of solvation of methanol oxidation intermediates on platinum(111) under explicit solvation journal January 2022
Protonation of water clusters in the cavities of acidic zeolites: (H2O)n·H-chabazite, n = 1–4 journal January 2009
A significant enhancement of catalytic activities in oxidation with H2O2 over the TS-1 zeolite by adjusting the catalyst wettability journal January 2014
Ab initio study of methanol and ethanol adsorption on Brønsted sites in zeolite H-MFI journal January 2018
Origins of complex solvent effects on chemical reactivity and computational tools to investigate them: a review journal January 2019
Influence of solvent structure and hydrogen bonding on catalysis at solid–liquid interfaces journal January 2021
Dielectric properties of liquid ethanol. A computer simulation study journal August 2000
Solvation free energies of amino acid side chain analogs for common molecular mechanics water models journal April 2005
The finite difference thermodynamic integration, tested on calculating the hydration free energy difference between acetone and dimethylamine in water journal June 1987
CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations journal May 2020
Interaction of water with zeolites: a review journal April 2021
Molecular Dynamics Simulation of the Structural and Physical Properties of the Four Polymorphs of TiO 2 journal May 1991
Regulation of hydrophilicity/hydrophobicity of aluminosilicate zeolites: a review journal October 2020
New progress in zeolite synthesis and catalysis journal March 2022