Colloidal Solutions of Copper Sulphide

Colloidal synthesis and characterizations of wittichenite copper bismuth sulphide nanocrystals.

Wittichenite (Cu(3)BiS(3)) nanocrystals have been synthesized utilizing a hot-injection method. They have been characterized in detail. Cu(3)BiS(3) nanocrystals possessed a band gap of 1.56 eV, and the corresponding nanocrystal-film shows a clear photoresponse in I-V measurements. Our work illustrates that Cu(3)BiS(3) nanocrystals have potential in the application of solar cells.

The influence of sulphide transport on the growth and properties of copper sulphide films on copper

Key parameters determining structure and properties of sulphide films formed on copper corroding in anoxic sulphide solutions

The corrosion behaviour of copper was studied in anoxic solutions containing different concentrations of sulphide (10–10 mol L) and chloride (0?1–5 mol L) under stagnant and controlled convective conditions. The main determinants of the structure and properties of the copper sulphide (Cu2S) films formed are the rate of sulphide transport to the surface relative to the rate of its interfacial re...

A model for the zeta potential of copper sulphide

A model is proposed for the zeta-potential versus pH curve of Covellite (CuS). he classical Gouy-Chapman-Stern treatment of the adsorption of protons is applied to a model surface derived from the crystallographic data. he surface charges are obtained by an original adaptation of the concepts from the MUSIC model to a sulphide, i.e. the analysis of the chemical bonding in Pauling’s electrostati...

Phase Diagram of Colloidal Solutions.

The phase diagram of globular colloids is studied using a combined analytic and computational representation of the relevant chemical potentials. It is shown how the relative positions of the phase boundaries are related to the range of interaction and the number of contacts made per particle in the solid phase. The theory presented successfully describes the features of the phase diagrams obse...