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Ion association and hydration in aqueous solutions of copper(II) sulfate from 5 to 65 degree Celsius by dielectric spectroscopy

Article Abstract:

Aqueous solutions of copper(II) sulfate are studied by dielectric relaxation spectroscopy (DRS) over a wide range of frequencies, concentrations and temperatures. Effective hydration numbers derived from the DRS spectra are high but consistent with simulation and diffraction data and they also indicate that both ions influence solvent water molecules beyond the first hydration sphere.

Dielectric relaxation, Properties, Chemical properties, Hydration (Chemistry)

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A heterostructure composed of conjugated polymer and copper sulfide nanoparticles

Article Abstract:

A study of LS multilayers of a soluble polythiophene derivative and semiconducting CuS nanoparticles is presented. Electrical properties of the heterostructure strongly depend on the formation of nanoparticle islands in the conjugated polymer, suggesting that the nanoparticle organization arises from a three-dimensional diffusion of the particle in the polymeric matrix.

Polymers, Electric properties, Nanoparticles

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Evolution of photoluminescence across dimensionality in lanthanide silicates

Article Abstract:

The structural characterization of small-pore [K.sub.3]Ln[Si.sub.3][O.sub.9], where Ln = Y, Eu, Tb and Er, called AV-23, is presented. A simple mechanism is described for the AV-22 to AV-23 structural transformation and their photoluminescence (PL) properties are compared.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Nonferrous Metals NEC, Silicates, Optical properties, Thermal properties, Thermogravimetry, Photoluminescence, Rare earth metals

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