Chemistry in heterocyclic ammonium fluorohydrogenate room-temperature ionic liquid

Tsuda, Tetsuya; Hagiwara, Rika

doi:10.1016/j.jfluchem.2007.10.004

Cited by 21 publications

(16 citation statements)

References 49 publications

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“…EtMeImF(HF) 2.3 , which is a RTIL, has several interesting properties, such as high conductivity (100 mS cm À1 at 298 K), negligible vapor pressure, and very low toxicity in comparison to conventional HF solutions. [180][181][182][183] Many applications using this novel HF liquid salt have been proposed so far, including dye-sensitized solar cells, [184] electrochemical double-layer capacitors, [185] fuel cells, [186] and organic synthesis. [187] Here, we introduce mesoporous Si layer formation by means of an anodic dissolution reaction of a p-type Si electrode (100, boron-doped (0.01-0.02 V cm)) in the EtMeImF(HF) 2.3 IL system.…”

Section: Fabrication Of Porous Materialsmentioning

confidence: 99%

New Frontiers in Materials Science Opened by Ionic Liquids

et al. 2010

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Ionic liquids (ILs) including ambient-temperature molten salts, which exist in the liquid state even at room temperature, have a long research history. However, their applications were once limited because ILs were considered as highly moisture-sensitive solvents that should be handled in a glove box. After the first synthesis of moisture-stable ILs in 1992, their unique physicochemical properties became known in all scientific fields. ILs are composed solely of ions and exhibit several specific liquid-like properties, e.g., some ILs enable dissolution of insoluble bio-related materials and the use as tailor-made lubricants in industrial applications under extreme physicochemical conditions. Hybridization of ILs and other materials provides quasi-solid materials, which can be used to fabricate highly functional devices. ILs are also used as reaction media for electrochemical and chemical synthesis of nanomaterials. In addition, the negligible vapor pressure of ILs allows the fabrication of electrochemical devices that are operated under ambient conditions, and many liquid-vacuum technologies, such as X-ray photoelectron spectroscopy (XPS) analysis of liquids, electron microscopy of liquids, and sputtering and physical vapor deposition onto liquids. In this article, we review recent studies on ILs that are employed as functional advanced materials, advanced mediums for materials production, and components for preparing highly functional materials.

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Section: Fabrication Of Porous Materialsmentioning

confidence: 99%

New Frontiers in Materials Science Opened by Ionic Liquids

et al. 2010

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“…The procedures used for the synthesis and purification of EtMeImCl, the sublimation of AlCl 3 , and the preparation of a Lewis acidic 66.7 m/o AlCl 3 -EtMeImCl RTIL were identical to those described in previous articles [7][8][9]. Solutions of Mo(II) and Ti(II) in the 66.7 m/o RTIL were prepared by the addition of anhydrous molybdenum(II) chloride, (Mo 6 Cl 8 )Cl 4 (Cerac, 99.5 %), and anhydrous titanium(II) chloride (Aldrich, 99.98 %), respectively.…”

Section: Experiments Preparation Of Plating Bathmentioning

confidence: 99%

Fundamental Research on Biomedical Application of Al-Mo-Ti Alloy Electrodeposited from AlCl<sub>3</sub>‒1-Ethyl-3-methylimidazolium Chloride Melt

Tsuda

Arimoto

Kuwabata

2010

Trans. Mat. Res. Soc. Japan

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The electrodeposition of ternary Al-Mo-Ti alloy was examined in the Lewis acidic 66.7-33.3 percent mole fraction aluminum chloride-1-ethyl-3-methylimidazolium chloride (AlCl 3 -EtMeImCl) room-temperature ionic liquid containing both (Mo 6 Cl 8 )Cl 4 and TiCl 2 . All of the electrodeposited Al-Mo-Ti alloys were dense and compact, and they adhered well to the copper substrate. In simulated body fluid, e.g., Ringer's solution, the Al-Mo-Ti alloy showed better corrosion resistance than pure nickel although it was somewhat inferior to 316 L stainless steel that is one of typical metallic biomaterials. Open circuit experiments in Ringer's solution suggested that amorphous Al-Mo alloy is superior to Al-Ti and Al-Mo-Ti alloys as a metallic biomaterial because of the formation of more stable passivation layer.Key words: ionic liquid, molten salt, electrodeposition, aluminum alloy, biomaterial INTRODUCTIONSupersaturated, single-phase binary aluminum-transition metal alloys show increased resistance to chloride-induced pitting corrosion compared to pure Al.Some examples of these "stainless" aluminum alloys that have been prepared to date include Al-V, Al-Nb, Al-Ti, Al-Cr, Al-Mo, and Al-W [1, 2]. Because the solute metal must be present in the Al at concentrations greatly exceeding their usual equilibrium solubilities (< 1 atomic percent (a/o)) so as to enhance the corrosion resistance, non-equilibrium alloying methods such as melt spinning, ion implantation, and sputter deposition are required to prepare these materials. Isothermal electrodeposition from chloroaluminate ionic liquids, particularly those that are liquid at room-temperature, e.g., AlCl 3 -1-ethyl-3-methyl-imidazolium chloride (EtMeImCl), offers a low-temperature route to thin films of these interesting and potentially useful materials. All of the alloys cited above have been prepared by electrodeposition from this or related chloroaluminate ionic liquids [3,4]. Of the electrodeposited alloys in this list, amorphous Al-Mo alloys show the best resistance to chloride-induced pitting corrosion (ca. +0.8 V vs. pure Al) [5]. However, we found that the addition of a relatively small amount of a second transition element, notably Mn, significantly improves the corrosion resistance of the Al-Mo alloy system [6].In this article, we introduce our recent experiments involving the galvanostatic electrodeposition of ternary Al-Mo-Ti alloy in the Lewis acidic 66.7-33.3 percent mole fraction (m/o) AlCl 3 -EtMeImCl room-temperature ionic liquid (described hereafter as 66.7 m/o RTIL) containing both (Mo 6 Cl 8 )Cl 4 and TiCl 2 . The purpose of this investigation is to obtain fundamental data when the Al-Mo-Ti alloy prepared from the 66.7 m/o RTIL is

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“…One of these fields is the chemistry of ''roomtemperature ionic liquid (RTIL)''. [3] 2. Coordination compounds with HF molecule(s) as ligand(s) to the metal center…”

Section: Introductionmentioning

confidence: 99%