Abstract
Diffusion of copper in copper sulfides, Cu2-xS is studied as a function of x by means of electrochemical impedance spectroscopy (EIS) at room temperature. Copper sulfide compositions were determined from electromotive force determinations in the Cu|Cu2+aq|Cu2-xS galvanic cell. The same cell was used to change the x value by imposing a potential different of the equilibrium one. Experimental EIS determinations relate diffusion coefficients and concentrations of diffusing species. The experimental data are discussed accordingly.
| Original language | English |
|---|---|
| Pages (from-to) | 4666-4671 |
| Number of pages | 6 |
| Journal | Journal of the Electrochemical Society |
| Volume | 146 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Jan 1999 |
| Externally published | Yes |