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Bushuev YG, Grosu Y, Chorążewski M. Spontaneous Dipole Reorientation in Confined Water and Its Effect on Wetting/Dewetting of Hydrophobic Nanopores. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7604-7616. [PMID: 38300737 PMCID: PMC10875646 DOI: 10.1021/acsami.3c17272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 02/03/2024]
Abstract
The properties of nanoconfined fluids are important for a broad range of natural and engineering systems. In particular, wetting/dewetting of hydrophobic nanoporous materials is crucial due to their broad applicability for molecular separation and liquid purification; energy storage, conversion, recuperation, and dissipation; for catalysis, chromatography, and so on. In this work, a rapid, orchestrated, and spontaneous dipole reorientation was observed in hydrophobic nanotubes of various pore sizes d (7.9-16.5 Å) via simulations. This phenomenon leads to the fragmentation of water clusters in the narrow nanopores (d = 7.9, 10 Å) and strongly affects dewetting through cluster repulsion. The cavitation in these pores has an electrostatic origin. The dependence of hydrogen-bonded network properties on the tube aperture is obtained and is used to explain wetting (intrusion)-dewetting (extrusion) hysteresis. Computer simulations and experimental data demonstrate that d equals ca. 12.5 Å is a threshold between a nonhysteretic (spring) behavior, where intrusion-extrusion is reversible, and a hysteretic one (shock absorber), where hysteresis is prominent. This work suggests that water clustering and the electrostatic nature of cavitation are important factors that can be effectively exploited for controlling the wetting/dewetting of nanoporous materials.
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Affiliation(s)
- Yuriy G. Bushuev
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9 Street, 40-006 Katowice, Poland
| | - Yaroslav Grosu
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9 Street, 40-006 Katowice, Poland
- Centre
for Cooperative Research on Alternative Energies (CIC EnergiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein
48, Vitoria, Gasteiz 01510, Spain
| | - Mirosław Chorążewski
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9 Street, 40-006 Katowice, Poland
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Giacomello A. What keeps nanopores boiling. J Chem Phys 2023; 159:110902. [PMID: 37724724 DOI: 10.1063/5.0167530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/29/2023] [Indexed: 09/21/2023] Open
Abstract
The liquid-to-vapor transition can occur under unexpected conditions in nanopores, opening the door to fundamental questions and new technologies. The physics of boiling in confinement is progressively introduced, starting from classical nucleation theory, passing through nanoscale effects, and terminating with the material and external parameters that affect the boiling conditions. The relevance of boiling in specific nanoconfined systems is discussed, focusing on heterogeneous lyophobic systems, chromatographic columns, and ion channels. The current level of control of boiling in nanopores enabled by microporous materials such as metal organic frameworks and biological nanopores paves the way to thrilling theoretical challenges and to new technological opportunities in the fields of energy, neuromorphic computing, and sensing.
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Affiliation(s)
- Alberto Giacomello
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, 00184 Rome, Italy
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Johnson LJW, Paulo G, Bartolomé L, Amayuelas E, Gubbiotti A, Mirani D, Le Donne A, López GA, Grancini G, Zajdel P, Meloni S, Giacomello A, Grosu Y. Optimization of the wetting-drying characteristics of hydrophobic metal organic frameworks via crystallite size: The role of hydrogen bonding between intruded and bulk liquid. J Colloid Interface Sci 2023; 645:775-783. [PMID: 37172487 DOI: 10.1016/j.jcis.2023.04.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023]
Abstract
HYPOTHESIS The behavior of Heterogeneous Lyophobic Systems (HLSs) comprised of a lyophobic porous material and a corresponding non-wetting liquid is affected by a variety of different structural parameters of the porous material. Dependence on exogenic properties such as crystallite size is desirable for system tuning as they are much more facilely modified. We explore the dependence of intrusion pressure and intruded volume on crystallite size, testing the hypothesis that the connection between internal cavities and bulk water facilitates intrusion via hydrogen bonding, a phenomenon that is magnified in smaller crystallites with a larger surface/volume ratio. EXPERIMENTS Water intrusion/extrusion pressures and intrusion volume were experimentally measured for ZIF-8 samples of various crystallite sizes and compared to previously reported values. Alongside the practical research, molecular dynamics simulations and stochastic modeling were performed to illustrate the effect of crystallite size on the properties of the HLSs and uncover the important role of hydrogen bonding within this phenomenon. FINDINGS A reduction in crystallite size led to a significant decrease of intrusion and extrusion pressures below 100 nm. Simulations indicate that this behavior is due to a greater number of cages being in proximity to bulk water for smaller crystallites, allowing cross-cage hydrogen bonds to stabilize the intruded state and lower the threshold pressure of intrusion and extrusion. This is accompanied by a reduction in the overall intruded volume. Simulations demonstrate that this phenomenon is linked to ZIF-8 surface half-cages exposed to water being occupied by water due to non-trivial termination of the crystallites, even at atmospheric pressure.
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Affiliation(s)
- Liam J W Johnson
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Calle Albert Einstein, 48, Vitoria-Gasteiz, 01510, Araba/Alava, Spain; Department of Physics, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48490, Leioa, Spain
| | - Gonçalo Paulo
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, Roma, Italy
| | - Luis Bartolomé
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Calle Albert Einstein, 48, Vitoria-Gasteiz, 01510, Araba/Alava, Spain
| | - Eder Amayuelas
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Calle Albert Einstein, 48, Vitoria-Gasteiz, 01510, Araba/Alava, Spain
| | - Alberto Gubbiotti
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, Roma, Italy
| | - Diego Mirani
- Department of Chemistry & INSTM University of Pavia, Via Taramelli 14, Pavia, I-27100, Italy
| | - Andrea Le Donne
- Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife) Via Luigi Borsari 46, Ferrara, I-44121, Italy
| | - Gabriel A López
- Department of Physics, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, Bilbao, 48490, Leioa, Spain
| | - Giulia Grancini
- Department of Chemistry & INSTM University of Pavia, Via Taramelli 14, Pavia, I-27100, Italy
| | - Paweł Zajdel
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, Chorzow, 41-500, Poland
| | - Simone Meloni
- Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife) Via Luigi Borsari 46, Ferrara, I-44121, Italy.
| | - Alberto Giacomello
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, Roma, Italy.
| | - Yaroslav Grosu
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Calle Albert Einstein, 48, Vitoria-Gasteiz, 01510, Araba/Alava, Spain; Institute of Chemistry, University of Silesia, Szkolna 9, Katowice, 40-006, Poland.
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