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Electrochemical window room-temperature ionic liquids

Recently, a eutectic mixture of choline chloride and urea (commercially known as Reline) was used as a medium from which CdS, as well as CdSe and ZnS, thin films were electrodeposited for the first time [53]. Reline is a conductive room-temperature ionic liquid (RTIL) with a wide electrochemical window. The voltammetric behavior of the Reline-Cd(II)-sulfur system was investigated, while CdS thin films were deposited at constant potential and characterized by photocurrent and electrolyte electroabsorbance spectroscopies. [Pg.93]

We have also demonstrated that well-behaved quantized charging of gold MPCs is possible in air- and water-stable room-temperature ionic liquids, such as 1-hexyl-3-methylimidazolium tris(penta-fluoroethyl)-trifluorophosphate (HMImEEP), Fig. 30c, d [334, 335]. As ionic liquids have very attractive features, including nearzero vapor pressure, considerable thermal stability, and an electrochemical stability window that often exceeds 4 V, this demonstration is particularly significant from a technological point of view. [Pg.177]

Room-temperature ionic liquids are attractive due to their chemical and thermal stability, negligible vapor pressure, high ionic conductivity, and ample electrochemical window. Their properties can be varied by a rational choice of the cations and of the anions and can represent an important iodide source for an I /I3 -based electrolyte (Fig. 17.12). [Pg.539]

Introduction of room-temperature ionic liquids (RTIL) as electrochemical media promises to enhance the utility of fuel-cell-type sensors (Buzzeo et al., 2004). These highly versatile solvents have nearly ideal properties for the realization of fuelcell-type amperometric sensors. Their electrochemical window extends up to 5 V and they have near-zero vapor pressure. There are typically two cations used in RTIL V-dialkyl immidazolium and A-alkyl pyridinium cations. Their properties are controlled mostly by the anion (Table 7.4). The lower diffusion coefficient and lower solubility for some species is offset by the possibility of operation at higher temperatures. [Pg.232]

Electrochemical Windows of Room-Temperature Ionic Liquids... [Pg.35]

ELECTROCHEMICAL WINDOWS OF ROOM-TEMPERATURE IONIC LIQUIDS... [Pg.36]

ELECTROCHEMICAL WINDOWS OF ROOM-TEMPERATURE IONIC LIQUIDS TABLE 4.1 Calculated IR-drop at 1.0 mA cm Flow Through a Disk Working Electrode... [Pg.38]

Room temperature ionic liquids (RTILs) are molten salts whose melting points are below room temperature. RTILs are formed when the constituent ions are sterically mismatched, thereby hindering crystal formation [17]. As polar solvents, RTILs have unique applications as tunable and environmentally benign solvents with very low volatility, high fire resistance, excellent chemical and thermal stability and wide liquid temperature range and electrochemical windows [17-19]. Solvent applications of RTILs include, for example, organic synthesis [17,20, 21], separations [22, 23], storage and transportation of hazardous chemicals [24], polymeric electrolytes [25, 26], dissolution of natural products [27] and synthesis of hollow metal oxide microspheres [28]. [Pg.215]

A possible solution to these problems could be to replace the aqueous deposition media by room temperature ionic liquids (RTILs). These are defined as liquids consisting of molecular cations and anions that have a melting point below 100 °C. Due to the size of the molecular ions and the fact that the charge is delocalized through the molecule, these liquids have large electrochemical windows. Another potential benefit is that RTILs have high degradation temperatures and low vapor... [Pg.39]

Matsumoto, H. (2005). Electrochemical windows of room-temperature ionic liquids. In Electrochemical Aspect of Ionic Liquids (ed. Ohno, H.), John Wiley and Sons, Inc., New Jersey, pp. 35-54. [Pg.132]

Electrolytes utilized in ECDs are required to have a high conductivity, be have transparency in the wavelength range used, have relatively large electrochemical windows, and have low volatility. Typical electrolytes that have been used are gel electrolytes, solid electrolytes, and ionic liquids [35,165,251-254]. Recent interest has grown in the use of room temperature ionic liquids in polymer ECDs due to lack of a solvent, enhancement of device lifetime, and enhancement of switching speeds [255-257]. [Pg.890]

Ong, S. P Andreussi, O. Wu, Y Marzari, N. Ceder, G. Electrochemical Windows of Room-Temperature Ionic Liquids from Molecular Dynamics and Density Functional Theory Calculations, Chem. Mater. 2011, 23,2979-2986. [Pg.444]

O Mahony AM, Silvester DS, Aldous L, Hardacre C, Compton RG (2008) Effect of water on the electrochemical window and potential limits of room-temperature ionic liquids. J Chem Eng Data 53 2884-2891... [Pg.163]

Room temperature ionic liquids (RTILs) are compounds that are composed of organic cations and multiatom anions in the liquid state near or below room temperature. They are well suited as solvents for electrochemistry [40] as they have wide electrochemical windows, good thermal stability, and low vapor pressure. Notably, RTILs provide opportunities for investigating electrode processes that take place outside the potential range limited by... [Pg.167]

Room temperature molten salts (RTMSs) or room temperature ionic liquids (RTILs) are acknowledged as electrolytes of the next generation because of their wide temperature range in liquid-phase, nonflammability, negligibly low vapor pressure, and wide electrochemical windows [11-15]. [Pg.365]


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Ionic liquid electrochemical window

Ionic room temperature

Liquid temperature

Liquid window

Room ionic liquid

Room temperature

Room temperature ionic liquid

Temperature ionic

Temperature windows

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