Measurement and study of density, surface tension, and viscosity of quaternary ammonium-based ionic liquids ([N222(n)]Tf2N)

Wettability and corrosion of [NTf2] anion-based ionic liquids on steel and PVD (TiN, CrN, ZrN) coatings

“…Some research groups focused their attention on thermophysical measurements (especially surface tension) of imidazolium-, pyridinium-, phosphonium-and ammonium-based ILs [19,[33][34][35].…”

Simple one step synthesis of gemini cationic surfactant-based ionic liquids: Physicochemical, surface properties and biological activity

“…To measure the density, a standard 5 ml pycnometer was calibrated by using deionized water at 298 K (0.9970 g cm − 3 ) [36,37]. The pycnometer was filled with dried and degassed ionic liquid sample.…”

Prediction of Density, Surface Tension, and Viscosity of Quaternary Ammonium-Based Ionic Liquids ([N222(n)]Tf2N) by Means of Artificial Intelligence Techniques

“…[11] ILs such as bis(trifluoromethylsulfonyl)imide (Tf 2 N -) anion are known as attractive electrochemical solvents, [12][13][14][15] because they have many adaptable properties common to ILs, such as wide electrochemical window, high ionic conductivity, wide temperature range for liquid phase, high thermal stability, inflammability, negligible vapor pressure, high solvation capability, and rather high viscosity. [15,16] In some practical applications, such as electric double layer capacitors, [16,17] lithium ion batteries [15,18,19] and dye-sensitized solar cells, [20,21] the Tf 2 N À anion-based ILs have more operation in compared with other ILs. To provide vast opportunities for the optimization of properties toward lower viscosity, higher molar conductivity, and higher electrochemical stability for synthesized ILs, the Tf 2 N À anion was composed with different cations, such as imidazolium, pyridinium, pyrrolidinium, piperidinium, and quaternary ammonium derivatives.…”

“…To provide vast opportunities for the optimization of properties toward lower viscosity, higher molar conductivity, and higher electrochemical stability for synthesized ILs, the Tf 2 N À anion was composed with different cations, such as imidazolium, pyridinium, pyrrolidinium, piperidinium, and quaternary ammonium derivatives. [15] With such novel properties and interesting industrial applications, thermophysical properties of ILs such as density, surface tension, viscosity, melting temperature, gas solubility, conductivity, refractive index, and critical temperature are very demanding especially for any industrial design and laboratory applications. For example, Shannon and Bara [22] characterized the density, viscosity, and CO 2 solubility of a series of 1-n-alkylimidazoles with chain lengths ranging from methyl (C 1 ) to tetradecyl (C 14 ).…”

“…[58][59][60] But in this study, we used from reported critical temperature of desired ILs in Ref. [15] which were calculated by means of a relationship between critical temperature and surface tension (c ¼ a (T c À T) 11=9 , where c, a, T c , and T are experimental PHYSICAL PROPERTIES FOR QUATERNARY AMMONIUM-BASED IONIC LIQUIDS measurements of surface tension, constant value, critical temperature, and operating temperature, respectively [15] ). Three separate collected data of the experimental measurements for these properties (density, surface tension, and viscosity) were used to construct the GFA and ANN models, and the best models of GFA and ANN which can predict desired properties of ILs with the lowest error were found.…”