M.R. Prat

Influence of CsCu2Cl3 on the electrical conductivity of CuCl

Abstract The influence of CsCu 2 Cl 3 on the conductive properties of gamma CuCl was studied by means of DTA and conductivity measurements. The results are interpreted as an enhancement effect of the dispersion of fine particles of CsCu 2 Cl 3 on the ionic conductivity of the solid electrolyte CuCl. The presence of an interparticle molten film at temperatures above 500 K is also postulated.

Copper electrodeposition on glassy carbon from a solid electrolyte

Abstract The copper electrodeposition from the solid electrolyte copper(I) iodide was studied by galvanostatic, potentiodynamic and potentiostatic techniques. From the galvanostatic runs two different steps were found, interpreted in terms of a first deposition on the glassy carbon electrode, followed by 3-D or 2-D nucleation at high or low current densities, respectively. A similar behaviour was found by the potentiostatic runs.

On the kinetics of Cu(I) transfer through the solid CuI-Cu interface

Abstract The Cu(I) transfer through the Cu/γ,β, α-CuI interface was studied by a galvanostatic transient technique. From the experimental activation energies obtained for both the anodic and cathodic processes, two different steps are postulated as rate controlling according to the temperature range: 1. a) the ion incorporation into the CuI solid electrolyte for the Cu/γ,β-CuI interface 2. b) the ion transfer from the metallic side to the electrolyte surface at the Cu/γ -CuI interface. A theoretical calculation of the energy barrier for the ion transfer is also presented.

Anodic decomposition of alpha-CuI on glassy carbon

Abstract The kinetics of the anodic reaction at the CuI/glassy carbon interface was studied. Tafel-type behavior was found, with two alternative processes: charge transport by electronic holes, predominant at low overpotentials, in parallel with the always present decomposition of the electrolyte at the CuI/glassy carbon interface, the rate-controlling step of the latter process being the recombination reaction of the adsorbed iodine atoms.

Study of the interaction between auxiliary electrolytes based on AgI and electrode material of the system [(1−x−y)Ag+xBi+yS] with the addition of graphite

Abstract The interaction between the electrolytes AgI and RbAg4I5 and electrode material from the system [(1−x−y)Ag+xBi+yS], to which different quantities of graphite were added, was studied. A reaction mechanism. is proposed based on the decomposition of the auxiliary electrolyte to elucidate the effect of adding graphite to electrode materials of low electronic conductivity.

Materials science communicationTheoretical approach to the calculation of the interaction energy between a copper ion and the α-CuI lattice

A model developed for the calculation of the interaction energy of a copper ion with a theoretical lattice of α-CuI thermalized with the Monte Carlo method is presented. The obtained results were used to calculate the activation energy barrier for the transference of a Cu(I) ion through the CuI/Cu0 interface and the latter was compared with experimental values.