2451
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Vilkman M, Lankinen A, Volk N, Kostamo P, Ikkala O. Self-assembly of cationic rod-like poly(2,5-pyridine) by acidic bis(trifluoromethane)sulfonimide in the hydrated state: A highly-ordered self-assembled protonic conductor. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2452
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Xia Y, Xie W, Ruden PP, Frisbie CD. Carrier localization on surfaces of organic semiconductors gated with electrolytes. PHYSICAL REVIEW LETTERS 2010; 105:036802. [PMID: 20867788 DOI: 10.1103/physrevlett.105.036802] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Revised: 02/16/2010] [Indexed: 05/29/2023]
Abstract
Organic semiconductor single crystals gated with electrolytes exhibit a pronounced maximum in channel conductance at hole densities >10(13) cm(-2). The cause is a strong decrease in the hole mobility with increasing charge density, which is explained in terms of a percolation model that incorporates trapping of holes by ions at the semiconductor-electrolyte interface. In the case of rubrene crystals, the peak channel conductance occurs at hole densities near 3 × 10(13) cm(-2). The magnitude of the effect will be large for semiconductors with low dielectric constants and narrow bandwidths, and thus is likely to be a general phenomenon in organic semiconductors gated with electrolytes.
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Affiliation(s)
- Yu Xia
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis 55455, USA
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2453
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Shi J, Wu P, Yan F. Further investigation of the intermolecular interactions and component distributions in a [Bmim][BF4]-based polystyrene composite membranes using two-dimensional correlation infrared spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:11427-11434. [PMID: 20536223 DOI: 10.1021/la1009225] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The intermolecular interaction and distribution of components in [Bmim][BF(4)]-based polystyrene composite membrane which is composed of 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF(4)]), poly(1-(2-methyl acryloyloxyundecyl)-3-methylimidazolium bromide) (poly(MAUM-Br)) and polystyrene is investigated by in situ Fourier transform infrared spectroscopy (FTIR) and two-dimensional correlation infrared spectroscopy (2DIR) in this study. A proposed model about the structure of this composite material is presented, and a sketch map about the local distributions of components is provided. In this model, alkyl chains in [Bmim][BF(4)], poly(MAUM-Br), and polystyrene in this system were supposed to form a polymeric network through aggregation or copolymerization. Cations of ionic liquids separate into the polymer network, while anions are kept mainly through the Coulomb force and partially by the hydrogen bonding between cations and anions. To support this model, FTIR has provided some hints on the pi-pi interaction existing in this complex material between the imidazole ring of ionic liquids and the benzene ring of polystyrene, based on the discovery of the shifts of IR absorption bands assigned to the C-C stretching vibrational mode. The sequential order of the responses from different chemical groups toward the variation of temperature is calculated by 2DIR, and the results suggest how different components distributed in this [Bmim][BF(4)]-based polystyrene composite membrane.
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Affiliation(s)
- Jingya Shi
- Key Laboratory of Molecular Engineering of Polymers (Ministry of Education) and Department of Macromolecular Science, Fudan University, Shanghai 200433, PR China
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2454
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Lauw Y, Rodopoulos T, Gross M, Nelson A, Gardner R, Horne MD. Electrochemical cell for neutron reflectometry studies of the structure of ionic liquids at electrified interface. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:074101. [PMID: 20687742 DOI: 10.1063/1.3455178] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We describe the design and use of a closed three-electrode electrochemical cell for neutron reflectometry studies of the structure of the electrical double-layer in ionic liquids. A transparent glass counter electrode was incorporated to allow easy monitoring of any gas bubbles trapped in the cell. A 100 mm diameter silicon wafer polished to 0.1 nm rms roughness coated with gold over a chromium adhesion layer was used as the working electrode. The utility of the cell was demonstrated during neutron reflectometry measurements of the ultrahigh purity ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([C(4)mpyr][NTf(2)]) at two different applied potentials.
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Affiliation(s)
- Y Lauw
- CSIRO Process Science and Engineering, Bayview Avenue, Clayton South, Victoria 3169, Australia
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2455
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Martis P, Dilimon V, Delhalle J, Mekhalif Z. Electro-generated nickel/carbon nanotube composites in ionic liquid. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.04.065] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2456
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Diffusional transport in ionic liquids: Stokes–Einstein relation or “sliding sphere” model? Ferrocene (Fc) in imidazolium liquids. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.03.070] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2457
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Roy D, Patel N, Conte S, Maroncelli M. Dynamics in an Idealized Ionic Liquid Model. J Phys Chem B 2010; 114:8410-24. [DOI: 10.1021/jp1004709] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Durba Roy
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Nikhil Patel
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Sean Conte
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Mark Maroncelli
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
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2458
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Nicolau BG, Sturlaugson A, Fruchey K, Ribeiro MCC, Fayer MD. Room Temperature Ionic Liquid−Lithium Salt Mixtures: Optical Kerr Effect Dynamical Measurements. J Phys Chem B 2010; 114:8350-6. [DOI: 10.1021/jp103810r] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bruno G. Nicolau
- Laboratório de Espectroscopia Molecular, Instituto de Química, Universidade de São Paulo, C.P. 26077, CEP 05513-970, São Paulo, SP, Brazil, Department of Chemistry, Stanford University, Stanford, California 94305
| | - Adam Sturlaugson
- Laboratório de Espectroscopia Molecular, Instituto de Química, Universidade de São Paulo, C.P. 26077, CEP 05513-970, São Paulo, SP, Brazil, Department of Chemistry, Stanford University, Stanford, California 94305
| | - Kendall Fruchey
- Laboratório de Espectroscopia Molecular, Instituto de Química, Universidade de São Paulo, C.P. 26077, CEP 05513-970, São Paulo, SP, Brazil, Department of Chemistry, Stanford University, Stanford, California 94305
| | - Mauro C. C. Ribeiro
- Laboratório de Espectroscopia Molecular, Instituto de Química, Universidade de São Paulo, C.P. 26077, CEP 05513-970, São Paulo, SP, Brazil, Department of Chemistry, Stanford University, Stanford, California 94305
| | - M. D. Fayer
- Laboratório de Espectroscopia Molecular, Instituto de Química, Universidade de São Paulo, C.P. 26077, CEP 05513-970, São Paulo, SP, Brazil, Department of Chemistry, Stanford University, Stanford, California 94305
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2459
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Tazi S, Salanne M, Simon C, Turq P, Pounds M, Madden PA. Potential-Induced Ordering Transition of the Adsorbed Layer at the Ionic Liquid/Electrified Metal Interface. J Phys Chem B 2010; 114:8453-9. [DOI: 10.1021/jp1030448] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sami Tazi
- UPMC Universite Paris 06, CNRS, ESPCI, UMR 7195, PECSA, F-75005, Paris, France
| | - Mathieu Salanne
- UPMC Universite Paris 06, CNRS, ESPCI, UMR 7195, PECSA, F-75005, Paris, France
| | - Christian Simon
- UPMC Universite Paris 06, CNRS, ESPCI, UMR 7195, PECSA, F-75005, Paris, France
| | - Pierre Turq
- UPMC Universite Paris 06, CNRS, ESPCI, UMR 7195, PECSA, F-75005, Paris, France
| | - Michael Pounds
- School of Chemistry, University of Edinburgh, Edinburgh EH9 3JJ, U.K
| | - Paul A. Madden
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K
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2460
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Wibowo R, Aldous L, Jones SEW, Compton RG. The electrode potentials of the Group I alkali metals in the ionic liquid N-butyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.04.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2461
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Sun XG, Dai S. Electrochemical investigations of ionic liquids with vinylene carbonate for applications in rechargeable lithium ion batteries. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.03.019] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2462
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Kiefer J, Pye CC. Structure of the Room-Temperature Ionic Liquid 1-Hexyl-3-methylimidazolium Hydrogen Sulfate: Conformational Isomerism. J Phys Chem A 2010; 114:6713-20. [DOI: 10.1021/jp1031527] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Kiefer
- School of Engineering, University of Aberdeen, Aberdeen, Scotland, U.K., Erlangen Graduate School in Advanced Optical Technologies, University Erlangen-Nuremberg, Erlangen, Germany, and Department of Chemistry, Saint Mary’s University, Halifax, Nova Scotia, Canada
| | - Cory C. Pye
- School of Engineering, University of Aberdeen, Aberdeen, Scotland, U.K., Erlangen Graduate School in Advanced Optical Technologies, University Erlangen-Nuremberg, Erlangen, Germany, and Department of Chemistry, Saint Mary’s University, Halifax, Nova Scotia, Canada
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2463
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Wolff M, Feldmann C. [Pb2I3(18-crown-6)2][SnI5] and CdI2(18-crown-6)·2I2: Two Layered Iodine Networks with Crown-ether Coordinated Pb2+ and Cd2+. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.201000072] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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2464
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2465
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Theoretical study on the asymmetric Michael addition of cyclohexanone with trans-β-nitrostyrene catalyzed by a pyrrolidine-type chiral ionic liquid. Chirality 2010; 22:813-9. [DOI: 10.1002/chir.20841] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2466
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Sasmal DK, Mojumdar SS, Adhikari A, Bhattacharyya K. Deuterium Isotope Effect on Femtosecond Solvation Dynamics in an Ionic Liquid Microemulsion: An Excitation Wavelength Dependence Study. J Phys Chem B 2010; 114:4565-71. [DOI: 10.1021/jp910948w] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dibyendu Kumar Sasmal
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Supratik Sen Mojumdar
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Aniruddha Adhikari
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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2467
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Giernoth R. Task-specific ionic liquids. Angew Chem Int Ed Engl 2010; 49:2834-9. [PMID: 20229544 DOI: 10.1002/anie.200905981] [Citation(s) in RCA: 463] [Impact Index Per Article: 33.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 12/11/2009] [Indexed: 11/09/2022]
Abstract
In recent years, ionic liquids have attracted the attention of many chemists as a result of their unique properties as solvents for chemical transformations. The focus of this Minireview is on applications of so-called "task-specific" ionic liquids, whereby the role of the ionic liquid goes beyond that of a solvent. Such ionic liquids find application in a wide range of areas, including catalysis, synthesis, gas absorption, and analysis.
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Affiliation(s)
- Ralf Giernoth
- Department für Chemie, Universität zu Köln, Germany.
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2468
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Lovelock KRJ, Cowling FN, Taylor AW, Licence P, Walsh DA. Effect of Viscosity on Steady-State Voltammetry and Scanning Electrochemical Microscopy in Room Temperature Ionic Liquids. J Phys Chem B 2010; 114:4442-50. [DOI: 10.1021/jp912087n] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kevin R. J. Lovelock
- School of Chemistry and Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Frances N. Cowling
- School of Chemistry and Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Alasdair W. Taylor
- School of Chemistry and Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Peter Licence
- School of Chemistry and Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Darren A. Walsh
- School of Chemistry and Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, United Kingdom
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2469
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Giernoth R. Ionische Flüssigkeiten für Spezialaufgaben - von der Katalyse bis zur Analytik. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905981] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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2470
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Kawai A, Kawamori D, Monji T, Asaka T, Akai N, Shibuya K. Photochromic Reaction of a Novel Room Temperature Ionic Liquid: 2-Phenylazo-1-hexyl-3-methylimidazolium Bis(pentafluoroethylsulfonyl)amide. CHEM LETT 2010. [DOI: 10.1246/cl.2010.230] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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2471
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Stoimenovski J, MacFarlane DR, Bica K, Rogers RD. Crystalline vs. ionic liquid salt forms of active pharmaceutical ingredients: a position paper. Pharm Res 2010; 27:521-6. [PMID: 20143257 DOI: 10.1007/s11095-009-0030-0] [Citation(s) in RCA: 267] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Accepted: 12/04/2009] [Indexed: 12/13/2022]
Abstract
Why not consider liquid salt forms of active pharmaceutical ingredients (APIs) as an alternative versatile tool in the pharmaceutical industry? Recent developments have shown that known APIs can be readily converted into ionic liquids and that these novel phases often possess different properties (e.g., improved solubilities and dissolution rates), which may have a direct impact on the pharmacokinetics and pharmacodynamics of the drug. They may also offer the potential of novel and more efficient delivery modes, as well as patent protection for each of the new forms of the drug. Since these pharmaceutically active ionic liquids represent a thermodynamically stable phase, they avoid the troublesome issues surrounding polymorphism and "polymorphic transformation." In some cases, an active cation and an active anion can be combined to produce a liquid possessing dual functionality. Here we examine and challenge the current industry reliance on crystalline APIs by discussing the breadth and potential impact of liquid salts as a possible approach to phase control.
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2472
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The effect of potential bias on the formation of ionic liquid generated surface films on Mg alloys. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.11.080] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2473
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Ramzy A, Thangadurai V. Tailor-made development of fast Li ion conducting garnet-like solid electrolytes. ACS APPLIED MATERIALS & INTERFACES 2010; 2:385-90. [PMID: 20356183 DOI: 10.1021/am900643t] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This paper reports a novel approach to designing advanced solid Li ion electrolytes for application in various solid state ionic devices, including Li ion secondary batteries, gas sensors, and electrochromic displays. The employed methodology involves a solid-solution reaction between the two best-known fast Li ion conductors in the garnet-family of compounds Li(6)BaLa(2)M(2)O(12) (M = Nb, Ta) and Li(7)La(3)Zr(2)O(12). Powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), AC impedance, and (7)Li nuclear magnetic resonance (Li NMR) spectroscopy were employed to characterize phase formation, morphology, ionic conductivity, and Li ion coordination in Li(6.5)La(2.5)BaZrMO(12). PXRD shows for formation of a cubic garnet-like structure and AC impedance data is consistent with other known solid Li ion electrolytes. Li(6.5)La(2.5)BaZrTaO(12) exhibits a fast Li ion conductivity of about 6 x 10(-3) S cm(-1) at 100 degrees C, which is comparable to that of currently employed organic polymer electrolytes value at room temperature. The Nb analogue shows an order of magnitude lower ionic conductivity than that of the corresponding Ta member, which is consistent with the trend in garnet-type electrolytes reported in the literature. Samples sintered at 1100 degrees C shows the highest electrical conductivity compared to that of 900 degrees C. (7)Li MAS NMR shows a sharp single peak at 0 ppm with respect to LiCl, which may be attributed to fast migration of ions between various sites in the garnets, and also suggesting average distributions of Li ions at average octahedral coordination in Li(6.5)La(2.5)BaZrMO(12). The present work together with literature used to establish very important fundamental relationship of functional property-Li concentration-crystal structure-Li diffusion coefficient in the garnet family of Li ion electrolytes.
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Affiliation(s)
- Adam Ramzy
- Department of Chemistry, The University of Calgary, Calgary, Alberta T2N 1N4, Canada
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2474
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Qiu F, Taylor AW, Men S, Villar-Garcia IJ, Licence P. An ultra high vacuum-spectroelectrochemical study of the dissolution of copper in the ionic liquid (N-methylacetate)-4-picolinium bis(trifluoromethylsulfonyl)imide. Phys Chem Chem Phys 2010; 12:1982-90. [DOI: 10.1039/b924985k] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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2475
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Yang SY, Cicoira F, Byrne R, Benito-Lopez F, Diamond D, Owens RM, Malliaras GG. Electrochemical transistors with ionic liquids for enzymatic sensing. Chem Commun (Camb) 2010; 46:7972-4. [DOI: 10.1039/c0cc02064h] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2476
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Han HB, Nie J, Liu K, Li WK, Feng WF, Armand M, Matsumoto H, Zhou ZB. Ionic liquids and plastic crystals based on tertiary sulfonium and bis(fluorosulfonyl)imide. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.10.019] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2477
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Yoshida Y, Saito G. Design of functional ionic liquids using magneto- and luminescent-active anions. Phys Chem Chem Phys 2010; 12:1675-84. [DOI: 10.1039/b920046k] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2478
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Huang J, Tao CA, An Q, Lin C, Li X, Xu D, Wu Y, Li X, Shen D, Li G. Visual indication of enviromental humidity by using poly(ionic liquid) photonic crystals. Chem Commun (Camb) 2010; 46:4103-5. [DOI: 10.1039/c003325a] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2479
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MacFarlane DR, Pringle JM, Howlett PC, Forsyth M. Ionic liquids and reactions at the electrochemical interface. Phys Chem Chem Phys 2010; 12:1659-69. [DOI: 10.1039/b923053j] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2480
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Byrne R, Coleman S, Gallagher S, Diamond D. Designer molecular probes for phosphonium ionic liquids. Phys Chem Chem Phys 2010; 12:1895-904. [DOI: 10.1039/b920580b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2481
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In Situ FTIR Spectroscopy Study of Li/LiNi[sub 0.8]Co[sub 0.15]Al[sub 0.05]O[sub 2] Cells with Ionic Liquid-Based Electrolytes in Overcharge Condition. ACTA ACUST UNITED AC 2010. [DOI: 10.1149/1.3292635] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2482
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Ahmad S, Yum JH, Xianxi Z, Grätzel M, Butt HJ, Nazeeruddin MK. Dye-sensitized solar cells based on poly (3,4-ethylenedioxythiophene) counter electrode derived from ionic liquids. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b920210b] [Citation(s) in RCA: 200] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2483
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2484
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Hiejima Y, Hayashi M, Uda A, Oya S, Kondo H, Senboku H, Takahashi K. Electrochemical carboxylation of α-chloroethylbenzene in ionic liquids compressed with carbon dioxide. Phys Chem Chem Phys 2010; 12:1953-7. [DOI: 10.1039/b920413j] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2485
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Abstract
Ionic liquids (ILs) have become an important class of solvents and soft materials over the past decades. Despite being salts built by discrete cations and anions, many of them are liquid at room temperature and below. They have been used in a wide variety of applications such as electrochemistry, separation science, chemical synthesis and catalysis, for breaking azeotropes, as thermal fluids, lubricants and additives, for gas storage, for cellulose processing, and photovoltaics. It has been realized that the true advantage of ILs is their modular character. Each specific cation–anion combination is characterized by a unique, characteristic set of chemical and physical properties. Although ILs have been known for roughly a century, they are still a novel class of compounds to exploit due to the vast number of possible ion combinations and one fundamental question remains still inadequately answered: why do certain salts like ILs have such a low melting point and do not crystallize readily? This Review aims to give an insight into the liquid–solid phase transition of ILs from the viewpoint of a solid-state chemist and hopes to contribute to a better understanding of this intriguing class of compounds. It will introduce the fundamental theories of liquid–solid-phase transition and crystallization from melt and solution. Aside form the formation of ideal crystals the development of solid phases with disorder and of lower order like plastic crystals and liquid crystals by ionic liquid compounds are addressed. The formation of ionic liquid glasses is discussed and finally practical techniques, strategies and methods for crystallization of ionic liquids are given.
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2486
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Izawa H, Wakizono S, Kadokawa JI. Fluorescence resonance-energy-transfer in systems of Rhodamine 6G with ionic liquid showing emissions by excitation at wide wavelength areas. Chem Commun (Camb) 2010; 46:6359-61. [DOI: 10.1039/c0cc01066a] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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2487
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Ahmad S, Berger R, Khan HU, Butt HJ. Electrical field assisted growth of poly(3-hexylthiophene) layers employing ionic liquids: microstructure elucidated by scanning force and electron microscopy. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm00659a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2488
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Yang JM, Gou SP, Sun IW. Single-step large-scale and template-free electrochemical growth of Ni–Zn alloy filament arrays from a zinc chloride based ionic liquid. Chem Commun (Camb) 2010; 46:2686-8. [DOI: 10.1039/c001088j] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2489
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Gao L, Yin H, Wang D. Ionic liquids assisted formation of an oil/water emulsion stabilised by a carbon nanotube/ionic liquid composite layer. Phys Chem Chem Phys 2010; 12:2535-40. [DOI: 10.1039/b920568n] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2490
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Döbbelin M, Marcilla R, Pozo-Gonzalo C, Mecerreyes D. Innovative materials and applications based on poly(3,4-ethylenedioxythiophene) and ionic liquids. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm00114g] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2491
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2492
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Walsh DA, Lovelock KRJ, Licence P. Ultramicroelectrode voltammetry and scanning electrochemical microscopy in room-temperature ionic liquid electrolytes. Chem Soc Rev 2010; 39:4185-94. [DOI: 10.1039/b822846a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2493
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Xu C, Yuan L, Shen X, Zhai M. Efficient removal of caesium ions from aqueous solution using a calix crown ether in ionic liquids: mechanism and radiation effect. Dalton Trans 2010; 39:3897-902. [DOI: 10.1039/b925594j] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2494
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Xie ZL, Jeličić A, Wang FP, Rabu P, Friedrich A, Beuermann S, Taubert A. Transparent, flexible, and paramagnetic ionogels based on PMMA and the iron-based ionic liquid 1-butyl-3-methylimidazolium tetrachloroferrate(iii) [Bmim][FeCl4]. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01733g] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2495
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Hsieh YT, Leong TI, Huang CC, Yeh CS, Sun IW. Direct template-free electrochemical growth of hexagonal CuSn tubes from an ionic liquid. Chem Commun (Camb) 2010; 46:484-6. [DOI: 10.1039/b919298k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2496
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Perkin S, Albrecht T, Klein J. Layering and shear properties of an ionic liquid, 1-ethyl-3-methylimidazolium ethylsulfate, confined to nano-films between mica surfaces. Phys Chem Chem Phys 2009; 12:1243-7. [PMID: 20119601 DOI: 10.1039/b920571c] [Citation(s) in RCA: 182] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report high-resolution measurements of the forces between two atomically smooth solid surfaces across a film of 1-ethyl-3-methylimidazolium ethylsulfate ionic liquid, for film thickness down to a single ion diameter. For films thinner than approximately 2 nm oscillatory structural forces are observed as the surface separation decreases and pairs of ion layers are squeezed out of the film. Strikingly, measurements of the shear stress of the ionic liquid film reveal low friction coefficients which are 1-2 orders of magnitude smaller than for analogous films of non-polar molecular liquids, including standard hydrocarbon lubricants, up to ca. 1 MPa pressure. We attribute this to the geometric and charge characteristics of the ionic liquid: the irregular shapes of the ions lead to a low shear stress, while the strong coulombic interactions between the ions and the charged confining surfaces lead to a robust film which is maintained between the shearing surfaces when pressure is applied across the film.
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Affiliation(s)
- Susan Perkin
- Department of Chemistry, University College London, 20 Gordon Street, London, UK WC1H 0AJ.
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2497
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Green O, Grubjesic S, Lee S, Firestone MA. The Design of Polymeric Ionic Liquids for the Preparation of Functional Materials. POLYM REV 2009. [DOI: 10.1080/15583720903291116] [Citation(s) in RCA: 257] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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2498
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Gericke M, Liebert T, Heinze T. Polyelectrolyte Synthesis and in Situ Complex Formation in Ionic Liquids. J Am Chem Soc 2009; 131:13220-1. [DOI: 10.1021/ja905003r] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin Gericke
- Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany
| | - Tim Liebert
- Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany
| | - Thomas Heinze
- Centre of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstraβe 10, D-07743 Jena, Germany
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2499
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Vijayaraghavan R, Surianarayanan M, Armel V, MacFarlane DR, Sridhar VP. Exothermic and thermal runaway behaviour of some ionic liquids at elevated temperatures. Chem Commun (Camb) 2009:6297-9. [DOI: 10.1039/b911568d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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