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de Izarra A, Coudert FX, Fuchs AH, Boutin A. Molecular Simulation of the Impact of Defects on Electrolyte Intrusion in Zeolites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:19056-19063. [PMID: 38088342 DOI: 10.1021/acs.langmuir.3c03306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
We have investigated through molecular simulation the intrusion of electrolytes in two representative pure-silica zeolites, silicalite-1 and chabazite, in which point defects were introduced in varying amounts. We distinguish between two types of defects, considering either "weak" or "strong" silanol nest defects, resulting in different hydration behaviors. In the presence of weak defects, the hydration process occurs through a homogeneous nucleation process, while with strong defects, we observe an initial adsorption followed by a filling of the nanoporous volume at a higher pressure. However, we show that electrolytes do not penetrate the zeolites, and these defects appear to have only marginal influence on the thermodynamics of electrolyte intrusion. While replacing pure water by the electrolyte solution shifts the intrusion pressure toward higher values because of the drop of water saturation vapor pressure, an increase in hydrophilicity of the framework due to point defects has the opposite effect, showing that controlling the amount of defects in zeolites is crucial for storage energy applications.
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Affiliation(s)
- Ambroise de Izarra
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - François-Xavier Coudert
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Alain H Fuchs
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Anne Boutin
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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Confalonieri G, Daou TJ, Nouali H, Arletti R, Ryzhikov A. Energetic Performance of Pure Silica Zeolites under High-Pressure Intrusion of LiCl Aqueous Solutions: An Overview. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25092145. [PMID: 32375316 PMCID: PMC7248837 DOI: 10.3390/molecules25092145] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 11/16/2022]
Abstract
An overview of all the studies on high-pressure intrusion-extrusion of LiCl aqueous solutions in hydrophobic pure silica zeolites (zeosils) for absorption and storage of mechanical energy is presented. Operational principles of heterogeneous lyophobic systems and their possible applications in the domains of mechanical energy storage, absorption, and generation are described. The intrusion of LiCl aqueous solutions instead of water allows to considerably increase energetic performance of zeosil-based systems by a strong rise of intrusion pressure. The intrusion pressure increases with the salt concentration and depends considerably on zeosil framework. In the case of channel-type zeosils, it rises with the decrease of pore opening diameter, whereas for cage-type ones, no clear trend is observed. A relative increase of intrusion pressure in comparison with water is particularly strong for the zeosils with narrow pore openings. The use of highly concentrated LiCl aqueous solutions instead of water can lead to a change of system behavior. This effect seems to be related to a lower formation of silanol defects under intrusion of solvated ions and a weaker interaction of the ions with silanol groups of zeosil framework. The influence of zeosil nanostructure on LiCl aqueous solutions intrusion-extrusion is also discussed.
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Affiliation(s)
- Giorgia Confalonieri
- Axe Matériaux à Porositées Contrôlées, Université de Haute Alsace (UHA), CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; (G.C.); (H.N.)
- Université de Strasbourg, F-67081 Strasbourg, France
- Dipartimento di Scienze Chimiche e Geologiche (DSCG), Università di Modena e Reggio Emilia, 41125 Modena, Italy;
| | - T. Jean Daou
- Axe Matériaux à Porositées Contrôlées, Université de Haute Alsace (UHA), CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; (G.C.); (H.N.)
- Université de Strasbourg, F-67081 Strasbourg, France
- Correspondence: (T.J.D.); (A.R.); Tel.: +33-389-33-67-39 (T.J.D.); +33-389-33-67-54 (A.R.)
| | - Habiba Nouali
- Axe Matériaux à Porositées Contrôlées, Université de Haute Alsace (UHA), CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; (G.C.); (H.N.)
- Université de Strasbourg, F-67081 Strasbourg, France
| | - Rossella Arletti
- Dipartimento di Scienze Chimiche e Geologiche (DSCG), Università di Modena e Reggio Emilia, 41125 Modena, Italy;
| | - Andrey Ryzhikov
- Axe Matériaux à Porositées Contrôlées, Université de Haute Alsace (UHA), CNRS, IS2M UMR 7361, F-68100 Mulhouse, France; (G.C.); (H.N.)
- Université de Strasbourg, F-67081 Strasbourg, France
- Correspondence: (T.J.D.); (A.R.); Tel.: +33-389-33-67-39 (T.J.D.); +33-389-33-67-54 (A.R.)
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Confalonieri G, Ryzhikov A, Arletti R, Quartieri S, Vezzalini G, Isaac C, Paillaud JL, Nouali H, Daou TJ. Structural interpretation of the energetic performances of a pure silica LTA-type zeolite. Phys Chem Chem Phys 2020; 22:5178-5187. [PMID: 32083620 DOI: 10.1039/c9cp06760d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The high pressure intrusion-extrusion process of different electrolyte aqueous solutions (NaCl and CaCl2, 2 M and 3 M) in a hydrophobic pure-silica LTA zeolite was investigated for energetic purposes by means of in situ X-ray powder diffraction, porosimeter tests, thermogravimetric analysis and NMR spectroscopy. The intrusion pressure of the saline solutions was proved to be higher than that of pure water, with the highest value measured for CaCl2, thus increasing the energetic performance of the system. The intrusion of NaCl solutions was irreversible (bumper behavior), whereas that of CaCl2 solutions is partially reversible (shock absorber behavior). The structural investigation allowed interpreting these results on the basis of the different intrusion mechanisms, in turn induced by the different nature of the cations present in the electrolyte solutions. When Si-LTA is intruded by NaCl solution, firstly H2O molecules penetrate the pores, leading to higher silanol defect formation followed by the solvated ions. With CaCl2, instead, due to a higher solvation enthalpy of Ca2+, a higher pressure is required for intrusion, and both H2O and ions penetrate at the same pressure. The structural refinements demonstrate (i) a different arrangement of the extraframework species in the two systems, (ii) the intrusion of the salt solutions occurs through strong desolvation of the ions and (iii) the salt/H2O ratios of the intruded species are higher than those of the starting electrolyte solutions.
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Affiliation(s)
- Giorgia Confalonieri
- Dipartimento di Scienze Chimiche e Geologiche (DSCG), Università di Modena e Reggio Emilia, Italy.
| | - Andrey Ryzhikov
- Université de Haute Alsace (UHA), Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), Mulhouse, France. and Université de Strasbourg, Strasbourg, France
| | - Rossella Arletti
- Dipartimento di Scienze Chimiche e Geologiche (DSCG), Università di Modena e Reggio Emilia, Italy.
| | - Simona Quartieri
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, Messina S. Agata, Italy
| | - Giovanna Vezzalini
- Dipartimento di Scienze Chimiche e Geologiche (DSCG), Università di Modena e Reggio Emilia, Italy.
| | - Carole Isaac
- Université de Haute Alsace (UHA), Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), Mulhouse, France. and Université de Strasbourg, Strasbourg, France
| | - Jean-Louis Paillaud
- Université de Haute Alsace (UHA), Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), Mulhouse, France. and Université de Strasbourg, Strasbourg, France
| | - Habiba Nouali
- Université de Haute Alsace (UHA), Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), Mulhouse, France. and Université de Strasbourg, Strasbourg, France
| | - T Jean Daou
- Université de Haute Alsace (UHA), Axe Matériaux à Porosité Contrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M), Mulhouse, France. and Université de Strasbourg, Strasbourg, France
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Abstract
Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.
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Affiliation(s)
- Gloria Tabacchi
- Department of Science and High Technology, University of Insubria, Via Valleggio, 9 I-22100, Como, Italy
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Ryzhikov A, Nouali H, Daou TJ, Patarin J. A drastic influence of the anion nature and concentration on high pressure intrusion-extrusion of electrolyte solutions in Silicalite-1. Phys Chem Chem Phys 2018; 20:6462-6468. [PMID: 29445820 DOI: 10.1039/c7cp06520e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
High pressure intrusion-extrusion of concentrated solutions of sodium salts in a pure-silica MFI-type zeolite (Silicalite-1) was studied for potential applications in mechanical energy absorption and storage. It was discovered that the anion nature has a drastic influence on the behavior and the energetic performances of "Silicalite-1 - concentrated Na+X- solution" systems, where X = Cl-, Br-, I-, NO2-, NO3-, ClO4- and CrO42-. In the case of NaNO2, NaClO4, Na2CrO4, and NaI a combination of bumper and shock-absorber behaviors with a partial irreversible solution intrusion was observed, whereas a fully reversible spring behavior is demonstrated for the intrusion-extrusion of NaBr, NaCl and NaNO3 solutions. In comparison with water, the intrusion pressure increases for all the solutions except for NaClO4 one. The irreversibility of intrusion decreases with a dilution rate, and the behavior of the corresponding systems with diluted solutions becomes very close. The variation of the system behavior and intrusion pressure values can be related to a different affinity of the corresponding anions for the pores of Silicalite-1. The samples before and after intrusion-extrusion experiments were characterized using several structural and physicochemical methods (XRD, TGA, solid-state NMR, and N2 physisorption), but no significant structural difference was observed.
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Affiliation(s)
- A Ryzhikov
- Université de Strasbourg (UdS), Université de Haute Alsace (UHA), Axe Matériaux à PorositéContrôlée (MPC), Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361, ENSCMu, 3 bis rue Alfred Werner, Mulhouse F-68093, France.
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Fraux G, Coudert FX, Boutin A, Fuchs AH. Forced intrusion of water and aqueous solutions in microporous materials: from fundamental thermodynamics to energy storage devices. Chem Soc Rev 2017; 46:7421-7437. [PMID: 29051934 DOI: 10.1039/c7cs00478h] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We review the high pressure forced intrusion studies of water in hydrophobic microporous materials such as zeolites and MOFs, a field of research that has emerged some 15 years ago and is now very active. Many of these studies are aimed at investigating the possibility of using these systems as energy storage devices. A series of all-silica zeolites (zeosil) frameworks were found suitable for reversible energy storage because of their stability with respect to hydrolysis after several water intrusion-extrusion cycles. Several microporous hydrophobic zeolite imidazolate frameworks (ZIFs) also happen to be quite stable and resistant towards hydrolysis and thus seem very promising for energy storage applications. Replacing pure water by electrolyte aqueous solutions enables to increase the stored energy by a factor close to 3, on account of the high pressure shift of the intrusion transition. In addition to the fact that aqueous solutions and microporous silica materials are environmental friendly, these systems are thus becoming increasingly interesting for the design of new energy storage devices. This review also addresses the theoretical approaches and molecular simulations performed in order to better understand the experimental behavior of nano-confined water. Molecular simulation studies showed that water condensation takes place through a genuine first-order phase transition, provided that the interconnected pores structure is 3-dimensional and sufficiently open. In an extreme confinement situations such as in ferrierite zeosil, condensation seem to take place through a continuous supercritical crossing from a diluted to a dense fluid, on account of the fact that the first-order transition line is shifted to higher pressure, and the confined water critical point is correlatively shifted to lower temperature. These molecular simulation studies suggest that the most important features of the intrusion/extrusion process can be understood in terms of equilibrium thermodynamics considerations.
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Affiliation(s)
- Guillaume Fraux
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie, Paris, 75005 Paris, France.
| | - François-Xavier Coudert
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie, Paris, 75005 Paris, France.
| | - Anne Boutin
- PASTEUR, École normale supérieure, PSL Research University, Sorbonne Universités, UPMC Univ. Paris 06, CNRS, 75005 Paris, France
| | - Alain H Fuchs
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie, Paris, 75005 Paris, France.
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