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1-Ethyl-3-Methylimidazolium Chloride

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I-wen Sun – One of the best experts on this subject based on the ideXlab platform.

  • Direct electrodeposition of FeCoZn wire arrays from a zinc Chloride-based ionic liquid
    Electrochemistry Communications, 2011
    Co-Authors: Jia-ming Yang, Yi-ting Hsieh, Ding-xuan Zhuang, I-wen Sun

    Abstract:

    Abstract The use of Zinc Chloride1-Ethyl-3-Methylimidazolium Chloride ionic liquid enables facile template-free electrochemical fabrication of arrays of polycrystalline ternary FeCoZn nanowires with diameter of 100–200 nm by controlling the deposition potential. The nanowire arrays were characterized by scanning electron microscopy, powder X-ray diffraction and transmission electron microscopy.

  • Corrosion behaviors of materials in aluminum Chloride1-Ethyl-3-Methylimidazolium Chloride ionic liquid
    Electrochemistry Communications, 2010
    Co-Authors: Chien-hsiung Tseng, Jeng-kuei Chang, Jhen-rong Chen, Wen Ta Tsai, Ming-jay Deng, I-wen Sun

    Abstract:

    Abstract The corrosion properties of carbon steel (CS), 304 stainless steel (304 SS), and pure titanium (Ti) are first studied in aluminum Chloride1-Ethyl-3-Methylimidazolium Chloride ionic liquid (IL). An active-to-passive transition behavior was clearly observed for CS. The 304 SS exhibited the best stability among the materials; no considerable corrosion was recognized even in this high-Chloride environment. In contrast, although Ti resists corrosion in ambient environments, it was not passivated in the IL and became severely corroded under an anodic applied potential. The material corrosion behaviors and mechanisms in the non-aqueous, low-oxygen, and high-halogen-containing IL are completely different from those in traditional aqueous solutions.

  • Heat-treatment induced material property variations of Al-coated Mg alloy prepared in aluminum Chloride/1-Ethyl-3-Methylimidazolium Chloride ionic liquid
    Surface and Coatings Technology, 2010
    Co-Authors: Mu Huan Chuang, Jeng-kuei Chang, Wen Ta Tsai, Ming-jay Deng, Pin Ju Tsai, I-wen Sun

    Abstract:

    Abstract An Al coating film, electrodeposited on a Mg alloy from aluminum Chloride1-Ethyl-3-Methylimidazolium Chloride (AlCl 3 –EMIC) ionic liquid, effectively prevents the substrate from rapid corrosion in a hostile environment. The thickness of the Al film can be easily determined by controlling the total cathodic charge applied, because the current efficiency of the electrodeposition reaction is close to 100%. Heat treatment at 450 °C under an argon atmosphere for 10 min causes an inter-diffusion at the Al/Mg interface, optimizing the protective performance of the coating film. Prolonging heating leads to a Mg 17 Al 12 intermetallic phase and a Mg solid solution phase to be formed at the expense of the deposited Al film. This phase transformation gives rise to a degradation in the corrosion resistance of the Al-coated sample.

Charles L Hussey – One of the best experts on this subject based on the ideXlab platform.

  • Electrodeposition of Selenium from the 1-Ethyl-3-Methylimidazolium Chloride-Tetrafluoroborate Room-Temperature Ionic Liquid
    ECS Transactions, 2019
    Co-Authors: Li-hsien Chou, I‐wen Sun, Charles L Hussey

    Abstract:

    Selenium is a useful material in the production of photovoltaic cells for converting light into electricity. Compound semiconductors containing selenium may also have various optoelectric applications. The electrodeposition of selenium in aqueous solutions has been studied extensively. Nevertheless, the electrodeposition of selenium in aqueous solutions is usually complicated. It was found that deposition of crystalline selenium requires elevated temperatures, which from a practical standpoint, is difficult to achieve in aqueous plating baths. Therefore, the use of ionic liquids, especially air and water-stable systems, for the electrodeposition of selenium is of great interest due to their extraordinary physical properties. However, information about the electrodeposition of selenium from ionic liquids is fairly limited. In view of this fact, direct electrodeposition of selenium was investigated in the 1-Ethyl-3-Methylimidazolium Chloride tetrafluoroborate ionic liquids at two temperatures: 30 and 90 C. Cyclic voltammograms of Se(IV) at a glassy carbon electrode (Fig. 1A) indicate that Se(IV) can be reduced to an unknown low oxidation state Se species that can be reduced further to Se(0). Bulk deposition of selenium was conducted using potentiostatic electrolysis at glass substrates coated with conductive indium-doped tin oxide (ITO). An X-ray diffraction pattern for an electrodeposited film is shown in Fig. 1B. The samples were also examined with scanning electron microscopy (SEM), and Fig. 1C shows a micrograph of a typical sample. It was also found that the morphology of the selenium deposits is affected by the applied deposition potential.

  • Rechargeable aluminum batteries utilizing a chloroaluminate inorganic ionic liquid electrolyte
    Chemical communications (Cambridge England), 2018
    Co-Authors: Chih-yao Chen, Tetsuya Tsuda, Susumu Kuwabata, Charles L Hussey

    Abstract:

    Rechargeable aluminum batteries composed of an aluminum anode, an expanded graphite cathode, and an inorganic chloroaluminate ionic liquid electrolyte show remarkably improved capacity, reversibility, and rate capability at 393 K compared to cells based on a common organic salt based ionic liquid, AlCl3–1-Ethyl-3-Methylimidazolium Chloride.

  • anodic dissolution of aluminum in the aluminum Chloride 1 ethyl 3 methylimidazolium Chloride ionic liquid
    Journal of The Electrochemical Society, 2016
    Co-Authors: Chen Wang, Adam A Creuziger, Gery R Stafford, Charles L Hussey

    Abstract:

    The anodic dissolution of aluminum metal was investigated in the Lewis acidic chloroaluminate ionic liquid, aluminum Chloride1-Ethyl-3-Methylimidazolium Chloride. The investigation was conducted on aluminum rotating disk electrodes as a function of potential, ionic liquid composition, and temperature. Two different dissolution mechanisms were realized. At modest overpotentials, dissolution takes place under mixed kinetic-mass transport control. However, as the overpotential is increased to induce higher dissolution rates and/or the ionic liquid is made more acidic, the dissolution reaction transitions to a potential-independent passivation-like process ascribed to the formation of a porous solid layer of AlCl3(s). At a fixed temperature and composition, the limiting passivation current density displays Levich behavior and also scales linearly with the concentration of AlCl4- in the ionic liquid. The heterogeneous kinetics of the Al dissolution reaction were measured in the active dissolution potential regime. The exchange current densities were independent of the composition of the ionic liquid, and the anodic transfer coefficients were close to zero and seemed to be independent of the Al grain size.

Zhen Yang – One of the best experts on this subject based on the ideXlab platform.

  • isobaric vapor liquid equilibrium of ethanenitrile water 1 2 ethanediol 1 ethyl 3 methylimidazolium Chloride
    Fluid Phase Equilibria, 2014
    Co-Authors: Huan Liu, Ying Zhang, Xianbao Cui, Tianyang Feng, Zhen Yang

    Abstract:

    Abstract The vapor–liquid equilibrium (VLE) data for the quaternary system ethanenitrile + water + 1,2-ethanediol + 1-Ethyl-3-Methylimidazolium Chloride ([EMIM]Cl) were measured at 102.5 kPa. The experimental VLE data were correlated with the nonrandom two liquid (NRTL) activity coefficient model, and the binary interaction parameters were obtained. The results show that the mixed entrainer of [EMIM]Cl and 1,2-ethanediol can eliminate the azeotropic point of ethanenitrile and water; the selectivity of [EMIM]Cl is higher than that of 1,2-ethanediol; the relative volatility of ethanenitrile to water increases with the increase of the mole fraction of mixed solvent (1,2-ethanediol + [EMIM]Cl) and the amount of [EMIM]Cl in mixed solvent, but there is no synergetic effect between 1,2-ethanediol and [EMIM]Cl. The main functions of 1,2-ethanediol are to dissolve ionic liquid and to reduce the viscosity of the entrainer.

  • Isobaric vapor–liquid equilibrium of ethanenitrile + water + 1,2-ethanediol + 1-Ethyl-3-Methylimidazolium Chloride
    Fluid Phase Equilibria, 2014
    Co-Authors: Liu Huan, Xianbao Cui, Ying Zhang, Tianyang Feng, Zhen Yang

    Abstract:

    Abstract The vapor–liquid equilibrium (VLE) data for the quaternary system ethanenitrile + water + 1,2-ethanediol + 1-Ethyl-3-Methylimidazolium Chloride ([EMIM]Cl) were measured at 102.5 kPa. The experimental VLE data were correlated with the nonrandom two liquid (NRTL) activity coefficient model, and the binary interaction parameters were obtained. The results show that the mixed entrainer of [EMIM]Cl and 1,2-ethanediol can eliminate the azeotropic point of ethanenitrile and water; the selectivity of [EMIM]Cl is higher than that of 1,2-ethanediol; the relative volatility of ethanenitrile to water increases with the increase of the mole fraction of mixed solvent (1,2-ethanediol + [EMIM]Cl) and the amount of [EMIM]Cl in mixed solvent, but there is no synergetic effect between 1,2-ethanediol and [EMIM]Cl. The main functions of 1,2-ethanediol are to dissolve ionic liquid and to reduce the viscosity of the entrainer.