1
|
Yakovlev IV, Shubin AA, Papulovskiy ES, Toktarev AV, Lapina OB. Repulsive Lateral Interaction of Water Molecules at the Initial Stages of Adsorption in Microporous AlPO 4-11 According to 27Al NMR and DFT. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6384-6393. [PMID: 38475698 DOI: 10.1021/acs.langmuir.3c03969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Lateral (adsorbate-adsorbate) interactions between adsorbed molecules affect various physical and chemical properties of microporous adsorbents and catalysts, influencing their functional properties. In this work, we studied the hydration of microporous AlPO4-11 aluminophosphate, which has an unusually ordered structure upon adsorption of water vapor, and according to 27Al NMR data, only tetrahedrally or octahedrally coordinated Al sites are present in the AlPO4-11. These 27Al NMR data are consistent with the results of density functional theory (DFT) calculations of hydrated AlPO4-11, which revealed the presence of a strong repulsive lateral interaction at the initial stage of adsorption, suppressing the adsorption of water on neighboring (separated by one -O-P-O- bridge) Al crystallographic sites. As a result, of all the different aluminum sites, only half of the Al1 sites adsorb two water molecules and acquire octahedral coordination.
Collapse
Affiliation(s)
- Ilya V Yakovlev
- Boreskov Institute of Catalysis, Prospekt Lavrentieva 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, ul. Pirogova 1, 630090 Novosibirsk, Russia
| | - Aleksandr A Shubin
- Institute of Solid State Chemistry and Mechanochemistry, Kutateladze 18, 630090 Novosibirsk, Russia
| | | | - Alexander V Toktarev
- Boreskov Institute of Catalysis, Prospekt Lavrentieva 5, 630090 Novosibirsk, Russia
| | - Olga B Lapina
- Boreskov Institute of Catalysis, Prospekt Lavrentieva 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, ul. Pirogova 1, 630090 Novosibirsk, Russia
| |
Collapse
|
2
|
Chen S, Wang J, Li X, Lv H, Wang Q, Dong E, Yang X, Liu R, Liu B. Hydrogen-bonded structures and low temperature transitions of the confined water in subnano channels. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:122912. [PMID: 37348273 DOI: 10.1016/j.saa.2023.122912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/23/2023] [Indexed: 06/24/2023]
Abstract
The interfacial and confined water have long been attractive objects due to their crucial roles in biological, geological processes, etc. In this paper, we investigate the hydrogen-bonded structures of water and their low temperature transitions in the subnano channels of AlPO4-11 for the first time on the basis of infrared spectroscopy. The number of the adsorbed water molecules is estimated to be 8.45 per channel in one unit cell by thermogravimetric analysis. It is found that the confined water molecules are involved in saturated and unsaturated coordination with different hydrogen bond strengths at ambient temperature. The former refers to ice-like four-coordinated water and the latter includes liquid-like structures, Al-coordinated and relatively free water molecules. Unique coordination between water molecules and framework Al sites is responsible for the ice-like structures in the channels above the ice melting point. The appearance of liquid-like structures is closely related to the strong channel confinement, which does not allow the formation of extensive tetrahedral hydrogen-bonded configuration. As temperature decreases, a structural transformation of confined water happens in the channels of AlPO4-11. Isolated small water oligomers and two new components with stronger hydrogen bonds, such as low-density amorphous ice-like structures and a kind of low-density liquid-like structures are preferred. Our results provide important insights into the structural organizations and thermal-dynamic behaviors of confined water in extreme narrow channels.
Collapse
Affiliation(s)
- Shuanglong Chen
- College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China
| | - Jianwen Wang
- College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China
| | - Xin Li
- College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China.
| | - Hang Lv
- College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China
| | - Qiushi Wang
- College of Physical Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China
| | - Enlai Dong
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning 121013, China
| | - Xibao Yang
- Laboratory Management Center, Bohai University, Jinzhou, Liaoning 121013, China
| | - Ran Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, Jilin 130012, China
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, Jilin 130012, China.
| |
Collapse
|
3
|
Hubman A, Volavšek J, Urbič T, Zabukovec Logar N, Merzel F. Water-Aluminum Interaction as Driving Force of Linde Type A Aluminophosphate Hydration. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2387. [PMID: 37686895 PMCID: PMC10490163 DOI: 10.3390/nano13172387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/16/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023]
Abstract
Linde type A (LTA) aluminophosphate is a promising candidate for an energy storage material used for low-temperature solar and waste-heat management. The mechanism of reversible water adsorption, which is the basis for potential industrial applications, is still not clear. In this paper, we provide mechanistic insight into various aspects of the hydration process using molecular modeling methods. Building on accurate DFT calculations and available experimental data, we first refine the existing empirical force-field used in subsequent classical molecular dynamics simulations that captures the relevant physics of the water binding process. We succeed in fully reproducing the experimentally determined X-ray structure factors and use them to estimate the number of water molecules present in the fully hydrated state of the material. Furthermore, we show that the translational and orientational mobility of the confined water is significantly reduced and resembles the dynamics of glassy systems.
Collapse
Affiliation(s)
- Anže Hubman
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000 Ljubljana, Slovenia; (A.H.); (T.U.)
- Theory Department, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Janez Volavšek
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia; (J.V.); (N.Z.L.)
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
| | - Tomaž Urbič
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000 Ljubljana, Slovenia; (A.H.); (T.U.)
| | - Nataša Zabukovec Logar
- Department of Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia; (J.V.); (N.Z.L.)
- School of Science, University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia
| | - Franci Merzel
- Theory Department, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| |
Collapse
|
4
|
Fischer M. Revisiting the Structure of Calcined and Hydrated AlPO-11 with DFT-Based Molecular Dynamics Simulations*. Chemphyschem 2021; 22:2063-2077. [PMID: 34314095 PMCID: PMC8596996 DOI: 10.1002/cphc.202100486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/26/2021] [Indexed: 11/07/2022]
Abstract
Published crystal structures of the AEL‐type aluminophosphate AlPO‐11 in its calcined form (space group Ima2
) show some peculiar features, such as unusually short Al−O and P−O bonds and near‐linear Al−O−P angles. Although experimental evidence for the presence of dynamic disorder was presented, the nature of the associated distortions remained unresolved. In this study, ab initio molecular dynamics (AIMD) calculations in the framework of density functional theory (DFT) were employed to study the dynamic behaviour of this zeotype. At 100 K, static local distortions that break the Ima2
symmetry are present in the time‐averaged structures computed from the AIMD trajectories. At 300 and 500 K, the time‐averaged structures approach Ima2
symmetry. Although shortened Al−O and P−O bonds and near‐linear Al−O−P angles were found in the average structures, an analysis of radial and angular distribution functions confirmed their absence in the instantaneous structures. This deviation is due to a precession‐like motion of some oxygen atoms around the Al−P connection line, which moves their time‐averaged positions closer to this line. In hydrated AlPO‐11, some of the water molecules are coordinated to framework Al atoms, leading to an octahedral coordination of 1/5 of the Al sites. DFT optimisations and AIMD simulations on partially hydrated models delivered evidence for a preferential adsorption at the Al1 site. No dynamic disorder was observed for the hydrated form.
Collapse
Affiliation(s)
- Michael Fischer
- Faculty of Geosciences, University of Bremen, Klagenfurter Straße 2-4, 28359, Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, 28359, Bremen, Germany
| |
Collapse
|
5
|
Grenev IV, Gavrilov VY. Calculation of adsorption properties of aluminophosphate and aluminosilicate zeolites. ADSORPTION 2017. [DOI: 10.1007/s10450-017-9903-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
6
|
Fischer M. Interaction of water with (silico)aluminophosphate zeotypes: a comparative investigation using dispersion-corrected DFT. Phys Chem Chem Phys 2016; 18:15738-50. [DOI: 10.1039/c6cp02289h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption of water in six structurally different aluminophosphates and their silicoaluminophosphate analogues is investigated using dispersion-corrected density-functional theory calculations. In addition to predicting the interaction energies, the structural changes of the materials upon water adsorption are assessed.
Collapse
Affiliation(s)
- Michael Fischer
- Fachgebiet Kristallographie, Fachbereich Geowissenschaften
- Universität Bremen
- 28359 Bremen
- Germany
- MAPEX Center for Materials and Processes
| |
Collapse
|
7
|
Mayoral A, Sanchez-Sanchez M, Alfayate A, Perez-Pariente J, Diaz I. Atomic Observations of Microporous Materials Highly Unstable under the Electron Beam: The Cases of Ti-Doped AlPO4-5 and Zn-MOF-74. ChemCatChem 2015. [DOI: 10.1002/cctc.201500617] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alvaro Mayoral
- Laboratorio de Microscopias Avanzadas; Instituto de Nanociencia de Aragon (INA); Universidad de Zaragoza, Edificio I+D, Mariano Esquillor; 50018 Zaragoza Spain
| | | | - Almudena Alfayate
- Instituto de Catalisis y Petroleoquimica (ICP); CSIC; Marie Curie, 2 28049 Madrid Spain
| | | | - Isabel Diaz
- Instituto de Catalisis y Petroleoquimica (ICP); CSIC; Marie Curie, 2 28049 Madrid Spain
| |
Collapse
|
8
|
Simmance K, van Beek W, Sankar G. Time resolved in situ X-ray diffraction study of crystallisation processes of large pore nanoporous aluminophosphate materials. Faraday Discuss 2015; 177:237-47. [PMID: 25683746 DOI: 10.1039/c4fd00179f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time resolved high-resolution X-ray powder diffraction was utilized to obtain detailed changes in the crystal structure parameters during the hydrothermal crystallization process of the nanoporous aluminophosphate AlPO-5 (AFI) structure. This in situ study offered not only the influence of metal ions on the onset of crystallization and estimation of the activation energy of the process, but also allowed us to determine in detail the changes in lattice parameters during this process. More importantly the time-resolved study clearly showed the lattice expansion in the divalent metal ions substituted system right from the on-set of crystallization process, compared to the one without any dopant ions, which suggest that an amorphous or poorly crystalline network is formed prior to crystallization that contains the large divalent ions (compared to Al(iii), the substituting element), which is in agreement with the combined XAS/XRD study reported earlier. A mechanism based on this and the earlier study is suggested.
Collapse
Affiliation(s)
- Kerry Simmance
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom.
| | | | | |
Collapse
|
9
|
Narang AS, Rao VM, Desai DS. Effect of Antioxidants and Silicates on Peroxides in Povidone. J Pharm Sci 2012; 101:127-39. [DOI: 10.1002/jps.22729] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Revised: 06/03/2011] [Accepted: 07/20/2011] [Indexed: 11/06/2022]
|
10
|
Krishna R, van Baten JM. Hydrogen bonding effects in adsorption of water-alcohol mixtures in zeolites and the consequences for the characteristics of the Maxwell-Stefan diffusivities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:10854-10867. [PMID: 20411951 DOI: 10.1021/la100737c] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This work highlights a variety of peculiar characteristics of adsorption and diffusion of polar molecules such as water, methanol and ethanol in zeolites. These peculiarities are investigated with the aid of configurational-bias Monte Carlo (CBMC) simulations of adsorption isotherms, and molecular dynamics (MD) simulations of diffusivities in FAU, MFI, DDR, and LTA zeolites. Because of strong hydrogen bonding, significant clustering of the guest molecules occurs in all investigated structures. Because of molecular clustering, the inverse thermodynamic factor 1/Gamma(i) identical with (d[ln c(i)])/(d[ln f(i)]) exceeds unity for a range molar concentrations c(i) within the micropores. The degree of clustering is lowered as the temperature is increased. For the concentration ranges for which 1/Gamma(i) > 1, the Fick diffusivity, D(i), for unary diffusion is often lower than both the Maxwell-Stefan, D(i), and the self-diffusivity, D(i,self). For water-alcohol mixtures, the hydrogen bonding between water and alcohol molecules is much more predominant than for water-water, and alcohol-alcohol molecule pairs. Consequently, the adsorption of water-alcohol mixtures shows significant deviations from the predictions of the ideal adsorbed solution theory (IAST). The water-alcohol bonding also leaves its imprint on the mixture diffusion characteristics. The Maxwell-Stefan diffusivity, D(i), of either component in water-alcohol mixtures is lower than the corresponding values of the pure components; this behavior is distinctly different from that for mixtures of nonpolar guest molecules. The binary exchange coefficient D(12) for water-alcohol mixtures is also significantly lower than either self-exchange coefficients D(11) and D(22) of the constituent species. This implies that correlation effects are significantly stronger in water-alcohol mixtures than for the constituent species. Correlation effects are found to be significant for water-alcohol mixture diffusion in DDR and LTA zeolites, even though such effects are negligible for the pure constituents. The major conclusion to emerge from this investigation is that, unlike mixtures of nonpolar molecules, it is not possible to estimate water-alcohol mixture adsorption and diffusion characteristics on the basis of pure component data.
Collapse
Affiliation(s)
- Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands.
| | | |
Collapse
|