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Lignin-containing nanocellulose (LNC) is a compelling alternative to traditional nanocellulose (NC), it offers enhanced yields and a reduction in the demand for toxic chemicals. This research involves the isolation of LNC from date palm waste using a green hydrolysis process and its subsequent characterization. The potential of using ionic liquids (ILs) as green solvents to isolate LNC has not yet been explored. Our findings suggest that 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) can hydrolyze partially delignified and unbleached lignocellulose, achieving LNC synthesis. The obtained LNC showed a higher yield than its NC counterpart and exhibited rod-shaped fibers with nanoscale diameters and micrometer lengths, indicating a high aspect ratio. Dynamic Light Scattering (DLS) results indicate average particle sizes of 143.20 nm for NC and 282.30 nm for LNC, with a narrow particle size distribution conforming their monodisperse behavior. Thermogravimetric analysis and differential scanning calorimetry revealed high thermal stability (initial degradation temperature = 222.50 °C and glass transition temperature = 84.45 ° C) of LNC. Moreover, the obtained LNC fibers were crystalline (crystallinity index = 52.76 %). Their activation energy (124.95 kJ/mol) was determined using the Coats–Redfern method by employing eight solid-state diffusion models. Overall, this study motivates the use of ILs as green solvents to produce lignocellulose derivatives that are suitable for various applications. • This study presenting green hydrolysis synthesis for lignin-containing nanocellulose (LNC). • Successful extraction of LNC from date palm waste using ionic liquid ([Emim]Cl) assisted hydrolysis. • Sustainable treatment pathway, minimizing energy and chemical consumption. • LNC with residual lignin shows high yield, thermal stability, and narrow size distribution. [ABSTRACT FROM AUTHOR]

• 1-ethyl-3-methylimidazolium chloride ionic liquid is introduced into triple-cation perovskite. • The modified perovskite film increases crystallinity, decreases pinholes and reduces defects density. • The target device acquires an efficiency of 21.54%, which is higher than that of the control device (18.12%). Although perovskite solar cells have made remarkable progress, the record device efficiency still lags far behind the theoretical limit efficiency. In this work, the ionic liquid, 1-ethyl-3-methylimidazolium chloride, is introduced into the triple-cation perovskite light absorption layer. The perovskite film with optimal amount of 1-ethyl-3-methylimidazolium chloride increases crystallinity, decreases pinholes and reduces defects density. As a result, the nonradiative recombination loss is efficiently restrained, accelerating the carrier extraction. The device modified with 1-ethyl-3-methylimidazolium chloride acquires a power conversion efficiency of 21.54%, which is considerably higher than that of the control device (18.12%). This work demonstrates that 1-ethyl-3-methylimidazolium chloride is a promising ionic liquid additive for high-performance perovskite solar cells. [Display omitted] [ABSTRACT FROM AUTHOR]

Sodium metal chloride batteries, also called as ZEBRA batteries, possess many merits such as low cost, high energy density and high safety, but their high operation temperature (270–350 °C) may cause several issues and limit their applications. Therefore, decreasing the operation temperature is of great importance in order to broaden their usage. Using a room temperature ionic liquid (RTIL) catholyte composed of sodium chloride buffered 1-ethyl-3-methylimidazolium chloride–aluminum chloride and a dense β″-aluminates solid electrolyte film with 500 micron thickness, we report an intermediate temperature sodium copper chloride battery which can be operated at only 150 °C, therefore alleviating the corrosion issues, improving the material compatibilities and reducing the operating complexities associated with the conventional ZEBRA batteries. The RTIL presents a high ionic conductivity (0.247 S cm −1 ) at 150 °C and a wide electrochemical window (−2.6 to 2.18 vs. Al 3+ /Al). With the discharge plateau at 2.64 V toward sodium and the specific capacity of 285 mAh g −1 , this intermediate temperature battery exhibits an energy density (750 mWh g −1 ) comparable to the conventional ZEBRA batteries (728–785 mWh g −1 ) and superior to commercialized Li-ion batteries (550–680 mWh g −1 ), making it very attractive for renewable energy integration and other grid related applications. [ABSTRACT FROM AUTHOR]

Abstract: In this work, the results relating to the mean activity coefficient measurements for 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl) in the (formamide+water) mixed solvent system using the potentiometric method have been reported. The electromotive force (emf) measurements were performed on the galvanic cell of the type: Ag|AgCl|[EMIm]Cl (m), formamide (wt.%), H2O (1−wt) %|EMIm-ISE, in various mixed solvent systems containing 0, 10, 20, 30, and 40% mass fractions of formamide over ionic strength ranging from 0.0010 to 2.5000mol·kg−1 at T=298.2K. The modeling of this ternary system was made based on the Pitzer ion-interaction model. The values of the mean activity coefficients, the osmotic coefficients, the excess Gibbs free energy and the solvent activity together with Pitzer ion-interaction parameters (β(0), β(1) and ) for the series under investigated system were determined. [Copyright &y& Elsevier]

Abstract: Vapour–liquid equilibrium data (water activity, vapour pressure, osmotic coefficient, and activity coefficient) of the mixed electrolyte aqueous solutions, 1-ethyl-3-methylimidazolium chloride, (EmimCl) + tri-potassium phosphate, EmimCl + potassium carbonate, EmimCl + potassium chloride and their corresponding binary aqueous solutions have been measured by the isopiestic method at a temperature of 298.15 K. The osmotic coefficients for binary aqueous solutions were correlated to the Pitzer, modified Pitzer and TCPC models. The osmotic coefficient of mixed electrolyte with common anion was correlated to the Pitzer model. From these data, the corresponding mean activity coefficients, , have been calculated. The activity coefficients of mixed electrolytes were calculated by Scatchard’s neutral electrolyte method. A modified Pitzer model has been used to predict the osmotic and activity coefficients of mixed electrolyte solution with common anion. [Copyright &y& Elsevier]