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Bratko D. Reversible Surface Energy Storage in Molecular-Scale Porous Materials. Molecules 2024; 29:664. [PMID: 38338408 PMCID: PMC10856011 DOI: 10.3390/molecules29030664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Forcible wetting of hydrophobic pores represents a viable method for energy storage in the form of interfacial energy. The energy used to fill the pores can be recovered as pressure-volume work upon decompression. For efficient recovery, the expulsion pressure should not be significantly lower than the pressure required for infiltration. Hysteresis of the wetting/drying cycle associated with the kinetic barrier to liquid expulsion results in energy dissipation and reduced storage efficiency. In the present work, we use open ensemble (Grand Canonical) Monte Carlo simulations to study the improvement of energy recovery with decreasing diameters of planar pores. Near-complete reversibility is achieved at pore widths barely accommodating a monolayer of the liquid, thus minimizing the area of the liquid/gas interface during the cavitation process. At the same time, these conditions lead to a steep increase in the infiltration pressure required to overcome steric wall/water repulsion in a tight confinement and a considerable reduction in the translational entropy of confined molecules. In principle, similar effects can be expected when increasing the size of the liquid particles without altering the absorbent porosity. While the latter approach is easier to follow in laboratory work, we discuss the advantages of reducing the pore diameter, which reduces the cycling hysteresis while simultaneously improving the stored-energy density in the material.
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Affiliation(s)
- Dusan Bratko
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23221, USA
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Amayuelas E, Tortora M, Bartolomé L, Littlefair JD, Paulo G, Le Donne A, Trump B, Yakovenko AA, Chorążewski M, Giacomello A, Zajdel P, Meloni S, Grosu Y. Mechanism of Water Intrusion into Flexible ZIF-8: Liquid Is Not Vapor. NANO LETTERS 2023. [PMID: 37294683 DOI: 10.1021/acs.nanolett.3c00235] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Zeolitic Imidazolate Frameworks (ZIF) find application in storage and dissipation of mechanical energy. Their distinctive properties linked to their (sub)nanometer size and hydrophobicity allow for water intrusion only under high hydrostatic pressure. Here we focus on the popular ZIF-8 material investigating the intrusion mechanism in its nanoscale cages, which is the key to its rational exploitation in target applications. In this work, we used a joint experimental/theoretical approach combining in operando synchrotron experiments during high-pressure intrusion experiments, molecular dynamics simulations, and stochastic models to reveal that water intrusion into ZIF-8 occurs by a cascade filling of connected cages rather than a condensation process as previously assumed. The reported results allowed us to establish structure/function relations in this prototypical microporous material, representing an important step to devise design rules to synthesize porous media.
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Affiliation(s)
- Eder Amayuelas
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Marco Tortora
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy
| | - Luis Bartolomé
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Josh David Littlefair
- Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife), Via Luigi Borsari 46, I-44121 Ferrara, Italy
| | - Gonçalo Paulo
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy
| | - Andrea Le Donne
- Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife), Via Luigi Borsari 46, I-44121 Ferrara, Italy
| | - Benjamin Trump
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | | | - Mirosław Chorążewski
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Alberto Giacomello
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, via Eudossiana 18, 00184 Rome, Italy
| | - Paweł Zajdel
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - Simone Meloni
- Dipartimento di Scienze Chimiche e Farmaceutiche (DipSCF), Università degli Studi di Ferrara (Unife), Via Luigi Borsari 46, I-44121 Ferrara, Italy
| | - Yaroslav Grosu
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
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Tinti A, Giacomello A, Meloni S, Casciola CM. Classical nucleation of vapor between hydrophobic plates. J Chem Phys 2023; 158:134708. [PMID: 37031130 DOI: 10.1063/5.0140736] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
In this work, an extended classical nucleation theory (CNT), including line tension, is used to disentangle classical and non-classical effects in the nucleation of vapor from a liquid confined between two hydrophobic plates at a nanometer distance. The proposed approach allowed us to gauge, from the available simulation work, the importance of elusive nanoscale effects, such as line tension and non-classical modifications of the nucleation mechanism. Surprisingly, the purely macroscopic theory is found to be in quantitative accord with the microscopic data, even for plate distances as small as 2 nm, whereas in extreme confinement ([Formula: see text] nm), the CNT approximations proved to be unsatisfactory. These results suggest how classical nucleation theory still offers a computationally inexpensive and predictive tool useful in all domains where nanoconfined evaporation occurs—including nanotechnology, surface science, and biology.
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Affiliation(s)
- Antonio Tinti
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, 00184 Rome, Italy
| | - Alberto Giacomello
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, 00184 Rome, Italy
| | - Simone Meloni
- Dipartimento di Scienze Chimiche e Farmaceutiche, Universitá degli Studi di Ferrara, 44121 Ferrara, Italy
| | - Carlo Massimo Casciola
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Sapienza Università di Roma, 00184 Rome, Italy
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Di Ilio G, Chiappini D, Falcucci G, Succi S. Progress in mesoscale methods for fluid dynamics simulation. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200393. [PMID: 34455837 DOI: 10.1098/rsta.2020.0393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Giovanni Di Ilio
- Department of Engineering, University of Naples 'Parthenope', Centro Direzionale, Isola C4, Naples 80143, Italy
| | - Daniele Chiappini
- Department of Engineering, University of Rome 'Niccolo Cusano', Via Don Carlo Gnocchi 3, Rome 00166, Italy
| | - Giacomo Falcucci
- Department of Enterprise Engineering 'Mario Lucertini', University of Rome 'Tor Vergata', Via del Politecnico 1, Rome 00133, Italy
- Department of Physics, Harvard University, 17 Oxford Street, 02138 Cambridge, MA, USA
| | - Sauro Succi
- Italian Institute of Technology, P.le Aldo Moro 1, Rome 00185, Italy
- Institute of Applied Computing - National Research Council of Italy, Via dei Taurini 19, Rome 00185, Italy
- Department of Physics, Harvard University, 17 Oxford Street, 02138 Cambridge, MA, USA
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