A series of sulfur doped copper-nickel hydroxides with heterojunctions were successfully fabricated on nickel foam by adjusting thiourea volume via a facile sonochemical pathway. The effect of volume of thiourea on the final morphology and chemical composition of the hybrids were also investigat...

The design of efficient and low-cost electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) remains a significant challenge for the hydrogen production. Herein, CuO nanowires encapsulated by Ni and NiFe hydroxides ([email protected]/NiFe hydroxides) in-si...

Copper and zinc are routinely used in livestock antimicrobial footbaths in commercial farming. The footbath mix is a cost to farmers, and the disposal of spent footbath into slurry tanks leads to soil contamination, as well as the potential for antimicrobial metal resistance and co-selection. Th...

Coffee leaf rust (CLR) is a major disease that occurs in all coffee-growing regions, and chemical control is the most effective strategy to control the disease. Usually, this control is based on the application of contact and/or systemic fungicides to the foliage of the plants, and a very common...

Copper hydroxide and copper sulfide nanowires were prepared by a chemical route on copper substrates. Their electrochemical and super-capacitive behavior compared with the case that theses nanowires are coated with silicon carbide. Different experiments including FE-SEM, XRD, Cyclic voltammetry,...

Solar cell performances of the cosensitized dye-sensitized solar cells (DSCs) with Black dye and D131 using the electrolyte solution containing a quaternary phosphonium iodide with a various alkyl chain length have been evaluated by the photoelectrochemical and the electrochemical impedance spec...

A Szilard-Chalmers concentration of Os191 has been achieved from targets of (NH4)2 OsCl6. Recoveries with enrichment factors greater than 10 were attained by a nitric-acid distillation separation of OsO4 following irradiation. The separation was shown to depend upon the relative kinetics of nitr...

Corrosion behavior of AZ31 magnesium alloy in NH4NO3-containing chloride solution was investigated by immersion tests, hydrogen evolution collection, electrochemical measurements, and microscopic observation. Addition of NH4NO3 accelerates corrosion due to the deterioration of Mg(OH)2 by NH4+ an...

We report a novel technique to fabricate bismuth stannate/[email protected] chloride (Bi2Sn2O7/[email protected]) films on conventional glass substrates. The film exhibited a remarkable self-cleaning capability against organic dyes under visible light. Porous Bi2Sn2O7 (BSO) film was first sinter...

Methane hydrates are one of unconventional energy resources. There are vast depositions of methane hydrates on the sea floor and under permafrost. The methane hydrates are stable under high pressure and low temperature conditions. Depressurization method is being developed for methane gas produc...

The use of ammonium fluoride as a mobile phase additive in aqueous normal phase chromatography with silica hydride-based stationary phases and mass spectrometry detection is evaluated. Retention times, peak shape, efficiency and peak intensity are compared to the more standard additives formic a...

To highlight the power of mechanochemistry to oxidize metal ions leading to the discovery of newer phases, ammonium fluoride mediated synthesis of A2PdF6 (A = Rb, K) has been carried out. Grinding reactions of ammonium fluoride with palladium (II) acetate and further cation exchange with AF (A =...

Conversion coatings on Ti-6Al-4V alloy was prepared through chemical modification in phytic acid and ammonium fluoride mixed solution. The influences of pH, time and the composition of solution on the microstructure of alloy surface were investigated. Scanning electron microscopy was used to obs...

PL and PAS studies were performed on uranyl compounds viz. uranium oxalate, uranium fluoride and ammonium uranyl fluoride. PL and PAS spectrum of ammonium uranyl fluoride is being reported for the first time. Ammonium uranyl fluoride is blue shifted with respect to uranyl fluoride, as a result o...

Mass spectrometry-based approaches enable us to capture changes in the metabolome in biological systems with high sensitivity and resolution. But global MS-based profiling of the bile acids (BAs) submetabolome is still a challenging task. Particularly for unconjugated BAs, the collision-induced ...

The present study aims to investigate the fluorination of thorium oxide (ThO2) by ammonium hydrogen difluoride (NH4HF2). Fluorination was performed at room temperature by mixing ThO2 and NH4HF2 at different molar ratios, which was then left to react for 20 days. Next, the mixtures were analyzed ...

Manganotantalite is difficult to decompose by sulfuric acid alone. Even at sulfuric-acid mass concentrations of 60%, only 8.5% tantalum and 9.9% niobium leached. To obtain a high leaching efficiency of tantalum and niobium, ammonium fluoride is added as an assistant reagent. Over 93% tantalum an...

Apparent molar volumes Vφ and apparent molar heat capacities Cp,φ were determined for aqueous solutions of lithium chloride, rubidium chloride, and cesium chloride at molalities m=(0.02 to 1.0) mol · kg−1, and at the pressure p=0.35 MPa. Density measurements obtained with a vibrating-tube den...

Activity coefficients of rubidium chloride and cesium chloride in methanol–water mixed solvent systems were determined by electromotive force (EMF) measurements at 298.15 K, in the range 0–40% (wt.%) methanol. For our work, the cells:Rb-ISE | RbCl (m), methanol (Y), water (1 − Y) | Cl-ISE;  Cs...

Ion-exchange adsorption is an effective method for separating cesium and rubidium from other alkaline metal ions in aqueous solutions. Herein, we developed a novel and facile method for in-situ preparation of Prussian blue (PB) nano-layer on porous polyacrylonitrile (PAN) membranes by heterogene...