A complementary survey of staircase voltammetry with metal ion deposition on macroelectrodes

Silver ion deposition on gold and silver disc electrodes from aqueous solutions and from dry or wet [EMIM][NTf2] room-temperature ionic liquid

“…In the current article, an extended investigation of silver ion deposition on polycrystalline gold and silver disc electrodes of millimetric radius from 1 M HNO 3 proves the appropriateness of our modelling approach and confirms the recently accomplished theoretical analysis of cyclical SV with metal ion deposition [3].…”

“…Modelling of SV and SWV with metal ion deposition and the numerical simulation technique are described in references [2][3][4]. To compare Ag (I) voltammograms under different experimental conditions, a normalized expression for the current designated as  [1][2][3] was sometimes used. Since the normalization factor in SV is the potential scan rate and in SWV the pulse duration, ψ has two separate forms.…”

“…depends, generally, on the adsorption isotherm of metal ions and on a set of dimensionless parameters [1][2][3]…”

“…In preceding articles [1][2][3] staircase voltammetry (SV) and square wave voltammetry (SWV) with metal ion deposition on native and foreign macroelectrodes were studied. In both methods the IR drop was taken into account [2,3]. Analysis of cyclical SV was concerned with fast and slow simple charge-transfer reactions and consideration was given to the occurrence of 3D nucleation overvoltage [3].…”

“…In both methods the IR drop was taken into account [2,3]. Analysis of cyclical SV was concerned with fast and slow simple charge-transfer reactions and consideration was given to the occurrence of 3D nucleation overvoltage [3]. Analysis of SWV was limited to fast reactions and was validated against experimental data for the Ag(I) deposition on a polycrystalline gold disc electrode from acidic nitrate solutions [2].…”