abstractthe ability of hesperidin (hp) to form complexes with five metals; cobalt, nickel, zinc, calcium and magnesium was investigated. the complexation was studied using u.v spectroscopic titration, in methanol as well as aqueous buffer solutions (physiological conditions). potential complexes were studied by ir and nmr spectroscopy, melting point and their solubility were also evaluated. the...

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 5799 wileyonlinelibrary.com issues associated with energy security and environmental pollution. [ 1–5 ] Oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) are the most crucial electrochemical reactions to realize energy storage and conversion in these technologies. Although Pt-, Ir-, and Ru-ba...

The proof-of-principle for the separation of metals by solvent extraction using two mutually immiscible ionic liquids is given. Cobalt was extracted from the ionic liquid 1-ethyl-3-methylimidazolium chloride to the ionic liquid trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate. A distribution ratio of 44 was obtained. Cobalt could be selectively separated from nickel, with a...

Electric vehicles powered by lithium-ion batteries are viewed as a vital green technology required to meet CO2 emission targets part of global effort tackle climate change. Positive electrode (cathode) materials within such rich in critical metals—particularly lithium, cobalt, and nickel. The large-scale mining metals, increasing battery demands, poses concerns surrounding material exhaustion a...

The normal growth rate, the steepness of polygonized hillocks and velocity step movement on (110) faces potassium cobalt–nickel sulphate crystals in aqueous solutions with cobalt to nickel ratios 1:1 1:2 were investigated as a function supersaturation by geometry using laser interferometry. It was found that morphologies grown from are similar formed multiple screw dislocation sources. experime...

AbstractThe ability of hesperidin (HP) to form complexes with five metals; cobalt, nickel, zinc, calcium and magnesium was investigated. The complexation was studied using U.V spectroscopic titration, in methanol as well as aqueous buffer solutions (physiological conditions). Potential complexes were studied by IR and NMR spectroscopy, melting point and their solubility were also evaluated. The...

AbstractThe ability of hesperidin (HP) to form complexes with five metals; cobalt, nickel, zinc, calcium and magnesium was investigated. The complexation was studied using U.V spectroscopic titration, in methanol as well as aqueous buffer solutions (physiological conditions). Potential complexes were studied by IR and NMR spectroscopy, melting point and their solubility were also evaluated. The...