Ionic liquids containing an alkyl sulfate group as potential electrolytes

Effect of Temperature on the Physico-Chemical Properties of a Room Temperature Ionic Liquid (1-Methyl-3-pentylimidazolium Hexafluorophosphate) with Polyethylene Glycol Oligomer

“…As shown in Table 1, the viscosities of pure [MPI][PF 6 ] and PEG400 decrease with increasing temperature due to the rise in the fluidity of the solution by increasing the kinetic energy of molecules. The viscosities and conductivities of pure [MPI][PF 6 ] and PEG400 in the temperature range of 301 to 359 K were fitted using the Vogel–Tamman–Fulcher (VTF) equation [23]: ${\eta }^{-1}\hspace{0.17em}=\hspace{0.17em}\frac{{\eta }_o}{\sqrt{T}}\text{exp}[\frac{-B}{(T\hspace{0.17em}-T_o)}]$where T is the absolute temperature and η o , B , and T o are adjustable parameters. The best-fit η o (cP), B (K), and T o (K) parameters are given in Table 2.…”

The Thermodynamic Estimation and Viscosity, Electrical Conductivity Characteristics of 1-Alkyl-3-Methylimidazolium Thiocyanate Ionic Liquids

“…Usually, temperature has a great effect on the viscosity of ILs, and the relationship between the temperature and viscosity is an essential factor to explore the appropriate conditions for the application of ILs. Figure 3 shows that the viscosity decreases with increasing temperature and by the Vogel-Tamman-Fulcher equation [36,37] (Eq. 10), the relationship between the temperature and viscosity of the ILs can be expressed as:…”

“…The relationship between the temperature, electrical conductivity, and molar electrical conductivity of ILs can also be expressed using the VFT equation, which is commonly used for the determination of electrical conductivities of ILs [36][37][38][39][40][41] (12) where is the electrical conductivity or molar electrical conductivity, and 0 and are adjustable parameters. The best fitted parameters of 0 , , 0 , and the correlation coefficients 2 are listed in Table 7.…”

“…ref [22], b : ref [23], c : ref [30] at 298.2 K, d : ref [31] at 295.85 K, e : ref [35], f: ref[36].…”

Electrochemical synthesis, characterization and electrochromic properties of indan and 1,3-benzodioxole-based poly(2,5-dithienylpyrrole) derivatives

“…Ionic liquids (ILs) are known to be environmentally benign media and ready to be used as hydrophobic electrolytes due to their non-volatility and excellent electrochemical stability [34][35][36]. The inherent properties of ILs such as high conductivity, a wide potential window, and air/moisture stability make them easy alternatives as chemically mild, stable electrolytes in the development of electrochemical and electrochromic (EC) devices [37][38][39][40].…”