Abstract In recent years, MXene 2D materials have shown good performance in enhancing the flame retardant properties of composite materials, but it is still tricky to improve compatibility with polymer matrix. This work explores a simple method for synthesis based nanohybrids (CoMn‐LDH@MXene) by hydrothermal using and layered double hydroxides (CoMn‐LDH) construct system excellent performance. The results show that nanosheets are less built up more dispersed TPU collective due inclusion LDH,...

Five acetic acid ionic liquids (AcAILs) [C(n)mim][OAc](n = 2,3,4,5,6) (1-alkyl-3-methylimidazolium acetate) were prepared by the neutralization method and characterized (1)HNMR spectroscopy differential scanning calorimetry (DSC). The values of their density surface tension measured at 298.15 ± 0.05 K. Since AcAILs can strongly form hydrogen bonds with water, small amounts water are difficult to remove from common methods. In order eliminate effect trace standard addition (SAM) was applied...

Four Lewis acidic organo-antimony(V) compounds with strong binding affinity to fluoride were used for the first time as ionophores fabricate polymeric membrane fluoride-selective electrodes. Improved detection limits and significant anti-Hofmeister selectivity could be achieved by optimizing ionophores, lipophilic additives, plasticizers. Membrane electrodes fabricated tetrakis-(pentafluorophenyl)stibonium (ionophore 2) performed best in limit, sensitivity, selectivity. Optimal performance...

ABSTRACT Both Layered Double Hydroxide (LDH) and MXene are two‐dimensional layered materials recognized for their remarkable flame‐retardant properties. Combining these enhances the fabrication of high‐performance flame retardants. In this work, a ternary CoFeCr‐LDH@MXene hybrid material was synthesized via facile hydrothermal method, effectively mitigating heat release, smoke generation, toxic gas emissions during combustion Thermoplastic Polyurethane (TPU). Compared to pristine TPU,...

Abstract The efficient transformation of CO 2 into value‐added chemicals with green, abundant, and cheap catalysts is an interesting challenging topic in both green sustainable chemistry. In this study, a series salt‐lake brines were used for the first time to catalyze reaction broad range 2‐aminobenzonitriles form corresponding quinazoline‐2,4(1 H ,3 )‐diones. It was found that available, inexpensive Zhabuye basic brine could efficiently promote under low pressure . Very high yields...

A new ionic liquid [C3mim][Val] (1-propyl-3-methylimidazolium valine) was synthesized and characterized by 1H NMR. To avoid the influence of trace water in (IL), standard addition method (SAM) employed; density surface tension were determined over temperature range 303.15–333.15 K (±0.05 K). The experimental density, tension, parachor values at 298.15 are good agreement with that predicted Tong et al. [J. al., Ind. Eng. Chem. Res.2011, 50, 2418–2423]. Based on data for [C3mim][Val], a series...

An acetic acid ionic liquid (AcAIL) [C2mim][OAc] (1-ethyl-3-methylimidazolium acetate) was prepared by the neutralization method. Using solution-reaction isoperibol calorimeter, molar enthalpies of solution, ΔsolHm, for with different molalities were measured in temperature range from (288.15 to 308.15 ± 0.01) K an interval 5 K. In terms Archer's method, standard ΔsolHmθ, obtained Plotting ΔsolHmθ against (T – 298.15) K, a good straight line obtained, slope being heat capacity ΔCp,mθ = 411...

An amino acid ionic liquid (AAIL), [C2mim][Val] (1-ethyl-3-methy-limidazolium valine), was synthesized and characterized by 1H NMR. To avoid the influence of trace water in IL, terms standard addition method (SAM), density, surface tension, refractive index for were measured different temperature ranges. On basis parachor molar volume [C2mim][Val], molecular volume, Vm, γ, enthalpy vaporization, ΔlgHm°, index, nD, thermal expansion coefficients, α, entropy, S°, polarization, Rm, homologue...

Solubilities, densities and refractive indices of the aqueous quaternary system lithium sulfate, metaborate, carbonate at 288.15, 298.15, 308.15 K 0.1 MPa were determined with isothermal dissolution method. According to experimental results, dry-salt phase diagrams, water-phase diagrams physicochemical properties including density, pH, index versus composition sulfate three temperatures plotted. In temperatures, there are four crystallization regions corresponding metaborate octahydrate...

A handful of bis/tetra-phosphonate calix[4]pyrroles with recognition sites embedding in hydrophobic cavitands were evaluated for the first time as ionophores polymeric membrane Ach+-selective electrodes. Highly selective potentiometric Ach+ could be achieved over its analogues, especially Ch+, which differs only by an acetate tail from Ach+. The superior performance proposed ISEs might ascribed to a dual-site binding mode, trimethylammonium head and accommodated phosphonate group-bridged...

Using Zn(2+)-BPMP or Cu(2+)-BPMP as a receptor and o-mercaptophenol an indicator, potentiometric sensing of aqueous phosphate by competition assays was achieved. With attractive features portability, low cost resistance to interference from turbidity color, this sensor successfully used for detection in biological water samples.

Densities of LiB5O6(OH)4(aq) at molalities 0.09859–0.89493 mol·kg–1 were measured 5 K intervals from 283.15 to 363.15 101.325 kPa using a precise Anton Paar Digital vibrating-tube densimeter. The apparent molar volumes (Vϕ), thermal expansion coefficients (α), and partial (V̅B) obtained. On the basis experimental data, diagrams thermodynamic parameters (α, Vϕ, V̅B) against molality different temperatures plotted. According Pitzer model volume, V̅B, ßM,X(0)v, ßM,X(1)v, ßM,X(2)v, CM,Xv ai...

The solution-processed sodium-alginate (SA) films, with nanoporous/nanochannel microstructure, possess a total absorbed water number of 10420 ± 395 molecules per square nanometer, which gives rise to high proton conductivity 4.0 × 10−4 S cm−1. When SA films used as gate dielectric in the thin film transistors, electric-double-layer (EDL) would be formed whether at dielectric/channel or dielectric/gate electrode interface, leading huge specific capacitance and low operating voltage for TFTs....

Solubilities, densities, refractive indices, and pH values for the ternary system (MgSO4 + Mg2B6O11 H2O) at (288.15, 298.15, 308.15) K 0.1 MPa, obtained using method of isothermal dissolution equilibrium, are reported first time. On basis experimental data, phase diagrams physicochemical properties density, index, versus concentration magnesium sulfate were plotted. It was found that there one invariant point, two univariant curves, crystallization regions corresponding to inderite...

The solid–liquid phase diagram of salt–water systems containing lithium, calcium, and borate is significance to understand the thermodynamic properties electrolytes promote productions lithium calcium borates. Solubilities physicochemical including density refractive index quinary system (Li+, Na+, Ca2+//Cl–, borate–H2O) at 288.15 K 0.1 MPa were investigated by isothermal dissolution equilibrium method for first time in this work. dry-salt, water-phase, sodium-phase diagrams plotted. In...