DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Mild-Temperature Supercritical Water Confined in Hydrophobic Metal–Organic Frameworks

Journal Article · · Journal of the American Chemical Society
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [2];  [3]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [5];  [6];  [7]; ORCiD logo [5]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [1]
  1. University of Ferrara (Italy)
  2. University of Silesia, Katowice (Poland)
  3. Shantou University, Guangdong (China)
  4. Jinan University, Guangzhou (China)
  5. University of Silesia, Chorzów (Poland)
  6. National Institute of Standards and Technology, Gaithersburg, MD (United States)
  7. Argonne National Laboratory (ANL), Argonne, IL (United States)
  8. University of Silesia, Katowice,(Poland)
  9. University of Silesia, Katowice (Poland); Basque Research and Technology Alliance (BRTA), Vitoria-Gasteiz (Spain)

Fluids under extreme confinement show characteristics significantly different from those of their bulk counterpart. This work focuses on water confined within the complex cavities of highly hydrophobic metal–organic frameworks (MOFs) at high pressures. A combination of high-pressure intrusion–extrusion experiments with molecular dynamic simulations and synchrotron data reveals that supercritical transition for MOF-confined water takes place at a much lower temperature than in bulk water, ~250 K below the reference values. This large shifting of the critical temperature (Tc) is attributed to the very large density of confined water vapor in the peculiar geometry and chemistry of the cavities of Cu2tebpz (tebpz = 3,3',5,5'-tetraethyl-4,4'-bipyrazolate) hydrophobic MOF. This is the first time the shift of Tc is investigated for water confined within highly hydrophobic nanoporous materials, which explains why such a large reduction of the critical temperature was never reported before, neither experimentally nor computationally.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China; Guangdong Basic and Applied Basic Research Foundation
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2469966
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 19 Vol. 146; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (85)

Thermodynamics and Dynamics of Supercritical Water Pseudo‐Boiling journal December 2020
Janus-Membranen: Erforschung ihrer Dualität für hochentwickelte Stofftrennungen journal June 2016
Size-Dependent Water Structures in Carbon Nanotubes journal June 2014
An Exceptionally Stable and Water‐Resistant Metal–Organic Framework with Hydrophobic Nanospaces for Extracting Aromatic Pollutants from Water journal July 2014
A Highly Stable Nonhysteretic {Cu 2 (tebpz) MOF+water} Molecular Spring journal September 2016
Temperature Effect on Adsorption/Desorption Isotherms for a Simple Fluid Confined within Various Nanopores journal July 2005
Molecular simulation of adsorption and intrusion in nanopores journal February 2008
The role of dissolved gases in high -performance liquid chromatography journal October 1978
Kinetic mechanism of water dewetting from hydrophobic stationary phases utilized in liquid chromatography journal July 2019
LAMMPS - a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales journal February 2022
Liquid piston based on molecular springs for energy storage applications journal September 2023
Optimization of the wetting-drying characteristics of hydrophobic metal organic frameworks via crystallite size: The role of hydrogen bonding between intruded and bulk liquid journal September 2023
Characterization and comparison of pore landscapes in crystalline porous materials journal July 2013
Under pressure: Quasi-high pressure effects in nanopores journal May 2012
Algorithms and tools for high-throughput geometry-based analysis of crystalline porous materials journal February 2012
Confined Water: Structure, Dynamics, and Thermodynamics journal August 2017
Isobaric Thermal Expansion of Compressed 1,4-Dichlorobutane and 1-Bromo-4-chlorobutane: Transitiometric Results and a Novel Application of the General Density Scaling-Based Equation of State journal June 2015
Extension of the Universal Force Field for Metal–Organic Frameworks journal September 2016
Heterogeneous Microscopic Dynamics of Intruded Water in a Superhydrophobic Nanoconfinement: Neutron Scattering and Molecular Modeling journal September 2021
Activated Wetting of Nanostructured Surfaces: Reaction Coordinates, Finite Size Effects, and Simulation Pitfalls journal December 2017
Different Water Networks Confined in Unidirectional Hydrophilic Nanopores and Transitions with Temperature journal June 2021
Critical Point of Fluid Confined in Nanopores: Experimental Detection and Measurement journal March 2019
One-Dimensional Glassy Behavior of Ultraconfined Water Strings journal August 2020
Gas-Induced Drying of Nanopores journal October 2020
Inflation Negative Compressibility during Intrusion–Extrusion of a Non-Wetting Liquid into a Flexible Nanoporous Framework journal May 2021
Accurate Characterization of the Pore Volume in Microporous Crystalline Materials journal July 2017
Phenomenological Study of Confined Criticality: Insights from the Capillary Condensation of Propane, n -Butane, and n -Pentane in Nanopores journal January 2018
Giant Negative Compressibility by Liquid Intrusion into Superhydrophobic Flexible Nanoporous Frameworks journal March 2021
Turning Molecular Springs into Nano-Shock Absorbers: The Effect of Macroscopic Morphology and Crystal Size on the Dynamic Hysteresis of Water Intrusion–Extrusion into-from Hydrophobic Nanopores journal June 2022
Mechanical, Thermal, and Electrical Energy Storage in a Single Working Body: Electrification and Thermal Effects upon Pressure-Induced Water Intrusion–Extrusion in Nanoporous Solids journal February 2017
Compact Thermal Actuation by Water and Flexible Hydrophobic Nanopore journal May 2021
Self-Recovery Superhydrophobic Surfaces: Modular Design journal December 2017
Energetics: A New Field of Applications for Hydrophobic Zeolites journal August 2001
Wetting in Hydrophobic Nanochannels:  A Challenge of Classical Capillarity journal August 2005
Adsorption and Dynamics in Hierarchical Metal–Organic Frameworks journal March 2014
Intrusion and Retraction of Fluids in Nanopores: Effect of Morphological Heterogeneity journal January 2009
Evaporation Length Scales of Confined Water and Some Common Organic Liquids journal April 2011
Pore Condensation and Critical-Point Shift of a Fluid in Controlled-Pore Glass journal November 1994
Nature of Adsorption and Desorption Branches in Cylindrical Pores journal May 2004
Thermodynamics of Water Confined in Porous Calcium-Silicate-Hydrates journal July 2012
Cassie–Baxter and Wenzel States on a Nanostructured Surface: Phase Diagram, Metastabilities, and Transition Mechanism by Atomistic Free Energy Calculations journal July 2012
Simple Phenomenological Model for Phase Transitions in Confined Geometry. 2. Capillary Condensation/Evaporation in Cylindrical Mesopores journal January 2009
Water conduction through the hydrophobic channel of a carbon nanotube journal November 2001
Hygro-responsive membranes for effective oil–water separation journal January 2012
Reminiscent capillarity in subnanopores journal October 2019
Water properties under nano-scale confinement journal June 2019
Observation of an exotic state of water in the hydrophilic nanospace of porous coordination polymers journal February 2020
Pressure enhancement in carbon nanopores: a major confinement effect journal January 2011
The complex, non-monotonic thermal response of the volumetric space of simple liquids journal January 2014
A new working mode for molecular springs: water intrusion induced by cooling and associated isobaric heat capacity change of a {ZIF-8 + water} system journal January 2015
Water adsorption in MOFs: fundamentals and applications journal January 2014
Multiscale adsorption and transport in hierarchical porous materials journal January 2016
Synergetic effect of temperature and pressure on energetic and structural characteristics of {ZIF-8 + water} molecular spring journal January 2015
Wetting and recovery of nano-patterned surfaces beyond the classical picture journal January 2019
The interplay among gas, liquid and solid interactions determines the stability of surface nanobubbles journal January 2020
Phase equilibria of water in cylindrical nanopores journal January 2001
Exploring nanoscale hydrophobic hydration journal January 2010
Adsorption, intrusion and freezing in porous silica: the view from the nanoscale journal January 2013
Capillary condensation of nitrogen in MCM-41 and SBA-15 journal November 2002
Water in nanopores. I. Coexistence curves from Gibbs ensemble Monte Carlo simulations journal January 2004
A grand canonical Monte Carlo study of capillary condensation in mesoporous media: Effect of the pore morphology and topology journal August 2004
A general purpose model for the condensed phases of water: TIP4P/2005 journal December 2005
Hydrogen bond dynamics and microscopic structure of confined water inside carbon nanotubes journal May 2006
Accurate and efficient algorithm for Bader charge integration journal February 2011
Adsorption hysteresis and pore critical temperature in a single cylindrical pore journal May 1998
Pressure control in interfacial systems: Atomistic simulations of vapor nucleation journal February 2018
Dispersion truncation affects the phase behavior of bulk and confined fluids: Coexistence, adsorption, and criticality journal April 2019
Probing the concept of line tension down to the nanoscale journal March 2020
Liquid-vapor oscillations of water in hydrophobic nanopores journal May 2003
Intrusion and extrusion of water in hydrophobic nanopores journal November 2017
Pressure effects in confined nanophases journal February 2014
Bubble formation in nanopores: a matter of hydrophobicity, geometry, and size journal January 2020
Intrusion and extrusion of liquids in highly confining media: bridging fundamental research to applications journal April 2022
Phase separation in confined systems journal December 1999
Water in nanopores: II. The liquid–vapour phase transition near hydrophobic surfaces journal October 2004
A grid-based Bader analysis algorithm without lattice bias journal January 2009
Molecular simulation of water confined in nanoporous silica journal June 2010
Advanced capabilities for materials modelling with Quantum ESPRESSO journal October 2017
Domain theory for capillary condensation hysteresis journal July 2005
Effect of pressure on the phase behavior and structure of water confined between nanoscale hydrophobic and hydrophilic plates journal April 2006
Metastable Wetting on Superhydrophobic Surfaces: Continuum and Atomistic Views of the Cassie-Baxter–Wenzel Transition journal November 2012
Hydrogen Bonding and Dipole Moment of Water at Supercritical Conditions: A First-Principles Molecular Dynamics Study journal October 2000
A Chemically Functionalizable Nanoporous Material [Cu3(TMA)2(H2O)3]n journal February 1999
Liquid intrusion in and extrusion from non-wettable nanopores for technological applications journal August 2021
Bubbles, Gating, and Anesthetics in Ion Channels journal June 2008