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van den Bruinhorst A, Corsini C, Depraetère G, Cam N, Pádua A, Costa Gomes M. Deep eutectic solvents on a tightrope: balancing the entropy and enthalpy of mixing. Faraday Discuss 2024. [PMID: 39056473 DOI: 10.1039/d4fd00048j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
The large melting point depressions characterising deep eutectic solvents (DESs) are related to negative deviations from ideal mixing behaviour characterised by the excess Gibbs energy. Favourable excess Gibbs energies result from a balance between the excess entropy and enthalpy of mixing, which was experimentally determined for three choline chloride (ChCl) based mixtures using calorimetry. While the excess Gibbs energy of H2O + ChCl is enthalpy dominated, those of ethylene glycol (EG) + ChCl and 1,3-propanediol + ChCl are entropy dominated. Molecular dynamics simulations using polarisable force-fields show intermolecular hydrogen bonds between DES constituents for H2O + ChCl and EG + ChCl. Hence, inter-species hydrogen bonding does not guarantee enthalpy-dominated melting point depressions. We suggest future research to focus on tuning the entropy-enthalpy balance via the chemical nature of the DES constituents.
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Affiliation(s)
- Adriaan van den Bruinhorst
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
| | - Chiara Corsini
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
| | - Guillaume Depraetère
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
| | - Nithavong Cam
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
| | - Agílio Pádua
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
| | - Margarida Costa Gomes
- Ionic Liquids Group, Laboratoire de Chimie de l'École Normale Supérieure de Lyon, Centre Nationale de Recherche Scientifique, and Université de Lyon, 69364 Lyon, France.
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van den Bruinhorst A, Avila J, Rosenthal M, Pellegrino A, Burghammer M, Costa Gomes M. Defying decomposition: the curious case of choline chloride. Nat Commun 2023; 14:6684. [PMID: 37865651 PMCID: PMC10590384 DOI: 10.1038/s41467-023-42267-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 10/04/2023] [Indexed: 10/23/2023] Open
Abstract
Chemists aim to meet modern sustainability, health, and safety requirements by replacing conventional solvents with deep eutectic solvents (DESs). Through large melting point depressions, DESs may incorporate renewable solids in task-specific liquids. Yet, DES design is complicated by complex molecular interactions and a lack of comprehensive property databases. Even measuring pure component melting properties can be challenging, due to decomposition before melting. Here we overcame the decomposition of the quintessential DES constituent, choline chloride (ChCl). We measured its enthalpy of fusion (13.8 ± 3.0 kJ ⋅ mol) and melting point (687 ± 9 K) by fast scanning calorimetry combined with micro-XRD and high-speed optical microscopy. Our thermodynamically coherent fusion properties identify ChCl as an ionic plastic crystal and demonstrate negative deviations from ideal mixing for ChCl-contradicting previous assumptions. We hypothesise that the plastic crystal nature of ammonium salts governs their resilience to melting; pure or mixed. We show that DESs based on ionic plastic crystals can profit from (1) a low enthalpy of fusion and (2) favourable mixing. Both depress the melting point and can be altered through ion selection. Ionic plastic crystal-based DESs thus offer a platform for task-specific liquids at a broad range of temperatures and compositions.
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Affiliation(s)
- Adriaan van den Bruinhorst
- École Normale Supérieure de Lyon and CNRS, Laboratoire de Chimie, Ionic Liquids Group, 46 allée d'Italie, 69364, Lyon Cedex 7, France.
| | - Jocasta Avila
- École Normale Supérieure de Lyon and CNRS, Laboratoire de Chimie, Ionic Liquids Group, 46 allée d'Italie, 69364, Lyon Cedex 7, France
| | - Martin Rosenthal
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001, Leuven, Belgium
| | - Ange Pellegrino
- École Normale Supérieure de Lyon and CNRS, Laboratoire de Chimie, Ionic Liquids Group, 46 allée d'Italie, 69364, Lyon Cedex 7, France
| | - Manfred Burghammer
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043, Grenoble Cedex 9, France
| | - Margarida Costa Gomes
- École Normale Supérieure de Lyon and CNRS, Laboratoire de Chimie, Ionic Liquids Group, 46 allée d'Italie, 69364, Lyon Cedex 7, France.
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Deng W, Wei F, Hu J. Muscle Contraction-Inspired Tough Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8462-8470. [PMID: 36734606 DOI: 10.1021/acsami.2c20319] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In many animals, tough skeletal muscle contraction occurs, producing a strong force through myofilaments attaching to and sliding on fibrous actin filaments. In contrast, the strength of typical synthetic hydrogels is facilitated mainly by polymeric chains. We propose a strategy for developing strong and tough hydrogels in which the side groups on polymeric chains strongly interact with dispersing medium. The hydrogels are fabricated with a polyacrylamide-alginate double network in a choline chloride saturated solution. The hydrogels are not only highly transparent, tough, fatigue-resistant, self-recovering, self-healing, and adhesive but also water-retentive, antifreezing, and conductive. The hydrogels are strengthened by hydrogen bonds in dispersing medium with a clathrate framework structure. This work may inspire the development of tough and conductive gels for applications of e-skins, soft robots, and intelligent devices.
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Affiliation(s)
- Weijun Deng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai201418, P. R. China
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai201418, P. R. China
| | - Fucheng Wei
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai201418, P. R. China
| | - Jing Hu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai201418, P. R. China
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Moghimi M, Roosta A, Hekayati J, Rezaei N. Estimating VLE behavior from SLE data in aqueous mixtures of choline chloride-sorbitol deep eutectic solvents: Experimental investigation and thermodynamic modeling using the e-NRTL model. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Modelling of Mean Ionic Activity and Osmotic Coefficients in Aqueous Solutions of Symmetrical Tetra alkyl Ammonium Halides. J SOLUTION CHEM 2022. [DOI: 10.1007/s10953-022-01211-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Activity Coefficient and CO2 Solubility Studies of Aqueous Alkyl Ammonium Salts Using Electrolyte PC-SAFT EOS. J SOLUTION CHEM 2022. [DOI: 10.1007/s10953-022-01184-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Martins MAR, Abranches DO, Silva LP, Pinho SP, Coutinho JAP. Insights into the Chloride versus Bromide Effect on the Formation of Urea-Quaternary Ammonium Eutectic Solvents. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mónia A. R. Martins
- CICECO − Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Dinis O. Abranches
- CICECO − Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Liliana P. Silva
- CICECO − Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Simão P. Pinho
- CIMO − Centro de Investigação de Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - João A. P. Coutinho
- CICECO − Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Lobo Ferreira AIMC, Vilas-Boas SM, Silva RMA, Martins MAR, Abranches DO, Soares-Santos PCR, Almeida Paz FA, Ferreira O, Pinho SP, Santos LMNBF, Coutinho JAP. Extensive characterization of choline chloride and its solid-liquid equilibrium with water. Phys Chem Chem Phys 2022; 24:14886-14897. [PMID: 35674089 DOI: 10.1039/d2cp00377e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The importance of choline chloride (ChCl) is recognized due to its widespread use in the formulation of deep eutectic solvents. The controlled addition of water in deep eutectic solvents has been proposed to overcome some of the major drawbacks of these solvents, namely their high hygroscopicities and viscosities. Recently, aqueous solutions of ChCl at specific mole ratios have been presented as a novel, low viscous deep eutectic solvent. Nevertheless, these proposals are suggested without any information about the solid-liquid phase diagram of this system or the deviations from the thermodynamic ideality of its precursors. This work contributes significantly to this matter as the phase behavior of pure ChCl and (ChCl + H2O) binary mixtures was investigated by calorimetric and analytical techniques. The thermal behavior and stability of ChCl were studied by polarized light optical microscopy and differential scanning calorimetry, confirming the existence of a solid-solid transition at 352.2 ± 0.6 K. Additionally, heat capacity measurements of pure ChCl (covering both ChCl solid phases) and aqueous solutions of ChCl (xChCl < 0.4) were performed using a heat-flow differential scanning microcalorimeter or a high-precision heat capacity drop calorimeter, allowing the estimation of a heat capacity change of (ChCl) ≈ 39.3 ± 10 J K-1 mol-1, between the hypothetical liquid and the observed crystalline phase at 298.15 K. The solid-liquid phase diagram of the ChCl + water mixture was investigated in the whole concentration range by differential scanning calorimetry and the analytical shake-flask method. The phase diagram obtained for the mixture shows an eutectic temperature of 204 K, at a mole fraction of choline chloride close to xChCl = 0.2, and a shift of the solid-solid transition of ChCl-water mixtures of 10 K below the value observed for pure choline chloride, suggesting the appearance of a new crystalline structure of ChCl in the presence of water, as confirmed by X-ray diffraction. The liquid phase presents significant negative deviations to ideality for water while COSMO-RS predicts a near ideal behaviour for ChCl.
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Affiliation(s)
- Ana I M C Lobo Ferreira
- CIQUP, Institute of Molecular Sciences (IMS) - Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal.
| | - Sérgio M Vilas-Boas
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal. .,CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rodrigo M A Silva
- CIQUP, Institute of Molecular Sciences (IMS) - Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal.
| | - Mónia A R Martins
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Dinis O Abranches
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula C R Soares-Santos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Filipe A Almeida Paz
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Olga Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Simão P Pinho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Luís M N B F Santos
- CIQUP, Institute of Molecular Sciences (IMS) - Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua Campo Alegre, 4169-007 Porto, Portugal.
| | - João A P Coutinho
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Przybyłek M, Miernicka A, Nowak M, Cysewski P. New Screening Protocol for Effective Green Solvents Selection of Benzamide, Salicylamide and Ethenzamide. Molecules 2022; 27:3323. [PMID: 35630800 PMCID: PMC9144492 DOI: 10.3390/molecules27103323] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/18/2022] [Accepted: 05/20/2022] [Indexed: 02/06/2023] Open
Abstract
New protocol for screening efficient and environmentally friendly solvents was proposed and experimentally verified. The guidance for solvent selection comes from computed solubility via COSMO-RS approach. Furthermore, solute-solvent affinities computed using advanced quantum chemistry level were used as a rationale for observed solvents ranking. The screening protocol pointed out that 4-formylomorpholine (4FM) is an attractive solubilizer compared to commonly used aprotic solvents such as DMSO and DMF. This was tested experimentally by measuring the solubility of the title compounds in aqueous binary mixtures in the temperature range between 298.15 K and 313.15 K. Additional measurements were also performed for aqueous binary mixtures of DMSO and DMF. It has been found that the solubility of studied aromatic amides is very high and quite similar in all three aprotic solvents. For most aqueous binary mixtures, a significant decrease in solubility with a decrease in the organic fraction is observed, indicating that all systems can be regarded as efficient solvent-anti-solvent pairs. In the case of salicylamide dissolved in aqueous-4FM binary mixtures, a strong synergistic effect has been found leading to the highest solubility for 0.6 mole fraction of 4-FM.
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Affiliation(s)
- Maciej Przybyłek
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland; (A.M.); (M.N.)
| | | | | | - Piotr Cysewski
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland; (A.M.); (M.N.)
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Abranches DO, Silva LP, Martins MAR, Coutinho JAP. Differences on the impact of water on the deep eutectic solvents betaine/urea and choline/urea. J Chem Phys 2021; 155:034501. [PMID: 34293900 DOI: 10.1063/5.0052303] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The differences on the impact of water on the intermolecular interactions present in the deep eutectic solvents betaine/urea and choline/urea are investigated in this work by measuring the solid-liquid phase diagrams of these mixtures with different amounts of added water. These data are analyzed in terms of ternary systems, rather than the usual pseudo-binary approach, and are used to calculate activity coefficients, which provide precious insight into how water affects the interactions of these systems. It is found that the addition of water greatly enhances the intermolecular interactions of betaine/urea near its eutectic composition, hinting at the formation of a 1:1:1 betaine/urea/water aggregate. On the other hand and contrary to what is commonly believed, water has an asymmetric impact on the interactions present in the choline/urea system. The addition of water to choline-rich mixtures leads to weaker interactions, whereas its addition to urea-rich mixtures leads to stronger interactions. This shows that the decrease in the melting temperature of choline/urea mixtures due to the presence of water does not necessarily mean that intermolecular interactions are strengthened. Finally, a minimum in the activity coefficient of urea in the choline/urea system with 2 wt. % of water was found, which coincides with several anomalies in the properties of this system previously reported in the literature.
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Affiliation(s)
- Dinis O Abranches
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Liliana P Silva
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mónia A R Martins
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João A P Coutinho
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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Triolo A, Lo Celso F, Brehm M, Di Lisio V, Russina O. Liquid structure of a choline chloride-water natural deep eutectic solvent: A molecular dynamics characterization. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115750] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhang H, Ferrer ML, Roldán-Ruiz MJ, Jiménez-Riobóo RJ, Gutiérrez MC, Del Monte F. Brillouin Spectroscopy as a Suitable Technique for the Determination of the Eutectic Composition in Mixtures of Choline Chloride and Water. J Phys Chem B 2020; 124:4002-4009. [PMID: 32298108 DOI: 10.1021/acs.jpcb.0c01919] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Deep eutectic solvents (DESs) resulting from the right combination between a hydrogen-bond donor (HBD) and a hydrogen-bond acceptor (HBA) are becoming quite popular in number of applications. More recently, natural DESs (NADESs) containing sugars, natural organic acids, and amino acids as HBDs and ChCl as HBA have received great attention because of their further environmental sustainability as compared to regular DESs. Within this context, mixing water in controlled amounts has been widely accepted as a simple and practical way of altering DES chemical and thermodynamic properties, with viscosity and conductivity experiencing the most significant changes. However, the number of papers describing eutectic mixtures with water as the only HBD is scarce and basically none has been done in fundamental terms. Herein, we investigated mixtures composed of water as the only HBD and ChCl as the HBA using differential scanning calorimetry (DSC) as well as 1H nuclear magnetic resonance (NMR) and Brillouin spectroscopies. We found the aqueous dilution of ChCl/2H2O with a ChCl/2H2O content of ca. 80 wt % was an eutectic. Interestingly, this mixture could be considered a NADES according to its eutectic distance (ΔTme), in range to eutectics obtained in aqueous dilutions of salt hydrates.
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Affiliation(s)
- Huan Zhang
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
| | - M Luisa Ferrer
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
| | - María J Roldán-Ruiz
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
| | - Rafael J Jiménez-Riobóo
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
| | - María C Gutiérrez
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
| | - Francisco Del Monte
- Consejo Superior de Investigaciones Científicas-CSIC, Instituto de Ciencia de Materiales de Madrid-ICMM, Campus de Cantoblanco, 28049-Madrid, Spain
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