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Stabilization of the (C 2H 5) 4NHSO 4 High-Temperature Phase in New Silica-Based Nanocomposite Systems. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248805. [PMID: 36557938 PMCID: PMC9781804 DOI: 10.3390/molecules27248805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
In this study, the electrotransport, thermal and structural properties of composite solid electrolytes based on (C2H5)4NHSO4 plastic phase and silica (1 - x)Et4NHSO4-xSiO2, where x = 0.3-0.9) were investigated for the first time. The composites were prepared by mechanical mixing of silica (300 m2/g, Rpore = 70Å) and salt with subsequent heating at temperatures near the Et4NHSO4 melting point. Heterogeneous doping is shown to change markedly the thermodynamic and structural parameters of the salt. It is important that, with an increase in the proportion of silica in the composites, the high-temperature disordered I41/acd phase is stabilized at room temperature, as this determines the properties of the system. Et4NHSO4 amorphization was also observed in the nanocomposites, with an increase in the matrix contents. The enthalpies of the endoeffects of salt melting and phase transitions (160 °C) changed more significantly than the Et4NHSO4 contents in the composites and completely disappeared at x = 0.9. The dependence of proton conductivity on the mole fraction reached a maximum at x = 0.8, which was three or four orders of magnitude higher than the value for pure Et4NHSO4, depending on the composition and the temperature. The maximum conductivity values were close to those for complete pore filling. The conductivity of the 0.2Et4NHSO4-0.8SiO2 composite reached 7 ∗ 10-3 S/cm at 220 °C and 10-4 S/cm at 110 °C.
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Uskov AV, Nefedov DY, Charnaya EV, Haase J, Michel D, Kumzerov YA, Fokin AV, Bugaev AS. Polymorphism of Metallic Sodium under Nanoconfinement. NANO LETTERS 2016; 16:791-794. [PMID: 26714113 DOI: 10.1021/acs.nanolett.5b04841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
(23)Na NMR studies of sodium nanoparticles confined to porous glass with the 3.5 nm mean pore size were carried out. The emergence of the second component of the NMR line was observed below 240 K that evidences the occurrence of another modification of metallic sodium. The phase transition temperature is much higher than the martensite transformation temperature in bulk sodium.
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Affiliation(s)
- A V Uskov
- Physics Department, St. Petersburg State University , St. Petersburg 198504, Russia
| | - D Yu Nefedov
- Physics Department, St. Petersburg State University , St. Petersburg 198504, Russia
| | - E V Charnaya
- Physics Department, St. Petersburg State University , St. Petersburg 198504, Russia
| | - J Haase
- Faculty of Physics and Geophysics, Leipzig University , Leipzig D-04103, Germany
| | - D Michel
- Faculty of Physics and Geophysics, Leipzig University , Leipzig D-04103, Germany
| | - Yu A Kumzerov
- A.F. Ioffe Physico-Technical Institute RAS , St. Petersburg 194021, Russia
| | - A V Fokin
- A.F. Ioffe Physico-Technical Institute RAS , St. Petersburg 194021, Russia
| | - A S Bugaev
- Moscow Institute of Physics and Technology , Moscow 141700, Russia
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Huber P. Soft matter in hard confinement: phase transition thermodynamics, structure, texture, diffusion and flow in nanoporous media. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:103102. [PMID: 25679044 DOI: 10.1088/0953-8984/27/10/103102] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Spatial confinement in nanoporous media affects the structure, thermodynamics and mobility of molecular soft matter often markedly. This article reviews thermodynamic equilibrium phenomena, such as physisorption, capillary condensation, crystallisation, self-diffusion, and structural phase transitions as well as selected aspects of the emerging field of spatially confined, non-equilibrium physics, i.e. the rheology of liquids, capillarity-driven flow phenomena, and imbibition front broadening in nanoporous materials. The observations in the nanoscale systems are related to the corresponding bulk phenomenologies. The complexity of the confined molecular species is varied from simple building blocks, like noble gas atoms, normal alkanes and alcohols to liquid crystals, polymers, ionic liquids, proteins and water. Mostly, experiments with mesoporous solids of alumina, gold, carbon, silica, and silicon with pore diameters ranging from a few up to 50 nm are presented. The observed peculiarities of nanopore-confined condensed matter are also discussed with regard to applications. A particular emphasis is put on texture formation upon crystallisation in nanoporous media, a topic both of high fundamental interest and of increasing nanotechnological importance, e.g. for the synthesis of organic/inorganic hybrid materials by melt infiltration, the usage of nanoporous solids in crystal nucleation or in template-assisted electrochemical deposition of nano structures.
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Affiliation(s)
- Patrick Huber
- Hamburg University of Technology (TUHH), Institute of Materials Physics and Technology, Eißendorfer Str. 42, D-21073 Hamburg-Harburg (Germany
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Kojda D, Wallacher D, Baudoin S, Hansen T, Huber P, Hofmann T. Solid phases of spatially nanoconfined oxygen: A neutron scattering study. J Chem Phys 2014; 140:024705. [DOI: 10.1063/1.4860555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Prisk TR, Bryan MS, Sokol PE. Diffusive and rotational dynamics of condensed n-H2confined in MCM-41. Phys Chem Chem Phys 2014; 16:17960-74. [DOI: 10.1039/c4cp02281e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we report an inelastic neutron scattering study of liquid and solidn-H2confined within MCM-41.
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Affiliation(s)
- T. R. Prisk
- Department of Physics
- Indiana University
- Bloomington, USA
| | - M. S. Bryan
- Department of Physics
- Indiana University
- Bloomington, USA
| | - P. E. Sokol
- Department of Physics
- Indiana University
- Bloomington, USA
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6
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DOMINGUEZ H, ALLEN MP, EVANS R. Monte Carlo studies of the freezing and condensation transitions of confined fluids. Mol Phys 2009. [DOI: 10.1080/00268979909482954] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- H. DOMINGUEZ
- a H H Wills Physics Laboratory , University of Bristol , Bristol , BS8 1TL , UK
| | - M. P. ALLEN
- a H H Wills Physics Laboratory , University of Bristol , Bristol , BS8 1TL , UK
| | - R. EVANS
- a H H Wills Physics Laboratory , University of Bristol , Bristol , BS8 1TL , UK
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Jiang K, Su Y, Xie B, Meng Y, Wang D. Suppression of the Phase Separation in Binary n-Alkane Solid Solutions by Geometrical Confinement. J Phys Chem B 2009; 113:3269-72. [DOI: 10.1021/jp811496x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kai Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yunlan Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Baoquan Xie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yanfeng Meng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, School of Chemistry and Materials Science, Ludong University, Yantai 264025, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
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Kobayashi N, Enoki T, Murakami Y, Suematsu H, Endo M. Magnetic Properties of Adsorbed Oxygen in Microporous Carbon. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259708044555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Norikazu Kobayashi
- a Department of Chemistry , Tokyo Institute of Technology , Meguro-ku, Tokyo , 152 , Japan
| | - Toshiaki Enoki
- a Department of Chemistry , Tokyo Institute of Technology , Meguro-ku, Tokyo , 152 , Japan
| | - Youichi Murakami
- b Department of Physics , University of Tokyo , Bunkyo-ku, Tokyo , 113 , Japan
| | - Hlroyoshi Suematsu
- b Department of Physics , University of Tokyo , Bunkyo-ku, Tokyo , 113 , Japan
| | - Morinobu Endo
- c Department of Electrical Engineering , Shinshu University , Nagano-shi, Nagano , 380 , Japan
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Calò V, Nacci A, Monopoli A, Fornaro A, Sabbatini L, Cioffi N, Ditaranto N. Heck Reaction Catalyzed by Nanosized Palladium on Chitosan in Ionic Liquids. Organometallics 2004. [DOI: 10.1021/om049586e] [Citation(s) in RCA: 153] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vincenzo Calò
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Angelo Nacci
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Antonio Monopoli
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Antonio Fornaro
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Luigia Sabbatini
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Nicola Cioffi
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
| | - Nicoletta Ditaranto
- Department of Chemistry and Centro CNR ICCOM and Department of Chemistry, University of Bari, via Orabona, 4-70126 Bari, Italy
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Ackermann R, Enderle M. Inversion and suppression of an oxygen bulk phase transition in confined geometry. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2003; 12 Suppl 1:S39-S42. [PMID: 15011012 DOI: 10.1140/epjed/e2003-01-010-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2003] [Indexed: 05/24/2023]
Abstract
By means of susceptibility experiments on oxygen confined to the pores of a Gelsil substrate we investigated the bulk gamma- beta transition. At low fillings, the transformation is completely suppressed. At higher but still incomplete filling we observe a partial transformation from gamma to beta on cooling and a subsequent inverted transition on heating, i.e. the transformation of gamma-phase material into the beta-phase upon heating. At 100% filling this inversion disappears. We discuss our results on the basis of geometric considerations.
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Affiliation(s)
- R Ackermann
- Universität des Saarlandes, Technische Physik, 66123 Saarbrücken, Germany
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Caló V, Nacci A, Monopoli A, Detomaso A, Iliade P. Pd Nanoparticle Catalyzed Heck Arylation of 1,1-Disubstituted Alkenes in Ionic Liquids. Study on Factors Affecting the Regioselectivity of the Coupling Process. Organometallics 2003. [DOI: 10.1021/om034020w] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vincenzo Caló
- Department of Chemistry and Istituto di Chimica dei Composti Organometallici (Sezione di Bari), University of Bari, Via Amendola 173, 70126 Bari, Italy, and Istituto di Ricerca sulle Acque (IRSA) CNR, v. De Blasio 5, 70123 Bari, Italy
| | - Angelo Nacci
- Department of Chemistry and Istituto di Chimica dei Composti Organometallici (Sezione di Bari), University of Bari, Via Amendola 173, 70126 Bari, Italy, and Istituto di Ricerca sulle Acque (IRSA) CNR, v. De Blasio 5, 70123 Bari, Italy
| | - Antonio Monopoli
- Department of Chemistry and Istituto di Chimica dei Composti Organometallici (Sezione di Bari), University of Bari, Via Amendola 173, 70126 Bari, Italy, and Istituto di Ricerca sulle Acque (IRSA) CNR, v. De Blasio 5, 70123 Bari, Italy
| | - Antonia Detomaso
- Department of Chemistry and Istituto di Chimica dei Composti Organometallici (Sezione di Bari), University of Bari, Via Amendola 173, 70126 Bari, Italy, and Istituto di Ricerca sulle Acque (IRSA) CNR, v. De Blasio 5, 70123 Bari, Italy
| | - Patrizia Iliade
- Department of Chemistry and Istituto di Chimica dei Composti Organometallici (Sezione di Bari), University of Bari, Via Amendola 173, 70126 Bari, Italy, and Istituto di Ricerca sulle Acque (IRSA) CNR, v. De Blasio 5, 70123 Bari, Italy
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Qiao Y, Christenson HK. Direct observation of capillary condensation of a solid. PHYSICAL REVIEW LETTERS 2001; 86:3807-3810. [PMID: 11329329 DOI: 10.1103/physrevlett.86.3807] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2000] [Indexed: 05/23/2023]
Abstract
We describe the direct condensation of a solid from vapor in an annular mica wedge. Neo-pentanol initially condenses as a liquid from 8 to 57 degrees C (the melting point T(m)), followed by nucleation of a solid from vapor for T<45 degrees C. Menthol (T(m) = 42 degrees C) gives only liquid condensates down to 12 degrees C. The adsorbed films of neo-pentanol, which unlike those of menthol show layering transitions, and the disordered crystalline phase of bulk neo-pentanol appear to facilitate condensation of the solid phase. There is evidence for a change in the nature of the solid neo-pentanol condensate with T.
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Affiliation(s)
- Y Qiao
- Department of Applied Mathematics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
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13
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Morishige K, Ogisu Y. Liquid–solid and solid–solid phase transitions of oxygen in a single cylindrical pore. J Chem Phys 2001. [DOI: 10.1063/1.1358862] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Bradley JS, Tesche B, Busser W, Maase M, Reetz MT. Surface Spectroscopic Study of the Stabilization Mechanism for Shape-Selectively Synthesized Nanostructured Transition Metal Colloids. J Am Chem Soc 2000. [DOI: 10.1021/ja992409y] [Citation(s) in RCA: 219] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Johnson SA, Ollivier PJ, Mallouk TE. Ordered mesoporous polymers of tunable pore size from colloidal silica templates. Science 1999; 283:963-5. [PMID: 9974384 DOI: 10.1126/science.283.5404.963] [Citation(s) in RCA: 526] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Ordered mesoporous polymers have been prepared by replication of colloidal crystals made from silica spheres 35 nanometers in diameter. The pores in the colloidal crystals were filled with divinylbenzene (DVB), ethyleneglycol dimethacrylate (EDMA), or a mixture of the two. Polymerization and subsequent dissolution of the silica template leaves a polycrystalline network of interconnected pores. When mixtures of DVB and EDMA are used, the pore size of the polymer replicas can be varied continuously between 35 and 15 nanometers because the polymer shrinks when the silica template is removed.
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Affiliation(s)
- S A Johnson
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
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Structural properties of simple sorbed gases (N2, Kr, D2O) confined in MCM-41 sample (Ø 40Å). ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0167-2991(98)81006-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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17
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Structural property of methane (CD4) and hydrogen (D2) sorbed phases on MCM-41 (Ø=25 Å). ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0167-2991(97)80649-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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18
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Fretwell HM, Duffy JA, Alam MA, Evans R. Anomalous freezing and melting behaviour of capillary confined CO2. J Radioanal Nucl Chem 1996. [DOI: 10.1007/bf02056398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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