Physical and mathematical models of an inert macroelectrode modified with active hemispherical microelectrodes

Popov, Konstantin; Živković, Predrag; Grgur, Branimir N.

doi:10.1016/j.electacta.2007.01.005

Cited by 18 publications

(60 citation statements)

References 22 publications

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“…In this way, it was not possible to analyze the effects of the mass-transfer limitations on the polarization characteristics of electrochemical processes. As shown recently [2,7], the influence of both kinetic parameters and mass-transfer limitations can be taken into account using the exchange current density to the limiting diffusion current density ratio (j 0 /j L ) for the process under consideration. Increased value of this ratio leads to the decrease of the overpotential at one and the same current density and, hence, to the energy savings.…”

Section: Introductionmentioning

confidence: 99%

“…There are two basic problems in activation of inert substrates by electrodeposition. First, the transformation of the electrode from inert to active one was elucidated recently [2]. Second, the investigation of the effect of surface morphology, especially dendrites [3][4][5][6] on the polarization characteristics of activated electrodes was initiated nowadays [7].…”

Section: Introductionmentioning

confidence: 99%

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The effect of the electrode surface roughness at low level of coarseness on the polarization characteristics of electrochemical processes

Popov

Nikolić

Živković

et al. 2010

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of the electrode surface roughness at low level of coarseness on the polarization characteristics of electrochemical processes

Popov

Nikolić

Živković

et al. 2010

Electrochimica Acta

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“…1. The electrode surface irregularities are buried deep in the diffusion layer, which is characterized by a steady linear diffusion to the flat portion of the surface [7,10,19]. * The reversible potential of a surface with radius of curvature rcur would depart from that of a planar surface by the quantityEr = 2V / (nFrcur), where  is the interfacial energy between metal and solution, and V molar volume of metal [18].…”

Section: Active Microelectrodes Placed Inside the Diffusion Layer Of mentioning

confidence: 99%

Electrochemical aspects of formation of dendrites

Popov¹,

Živković²,

Nikolić³

2016

Zas Mat

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The one of the main contributions of Belgrade Electrochemical School to the field of metal electrodeposition is investigation of a mechanism of formation and growth of the disperse deposits. Spongy-like, cauliflower-like, needle-like, carrot-like, dendrites of various shapes, etc In these publications all aspects of morphology of electrodeposited metal are discussed, from dendritic growth initiation and dendritic growth [2,3,11] to the bright deposits formation [2,3,8] and the effect of hydrogen co-deposition on morphology of electrodeposits [3,9,14]. One of the most important conclusion derived by BES is the mechanism of disperse deposits formation, based on different behaviour of the macroelectrodes and microelectrodes under the same conditions of electrodeposition. The aim of this article is to discuss this phenomenon in the way given in [11] for the growth of dendrites.

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“…the electrodeposition [10][11][12][13]. The typical ohmic-diffusion and full ohmic polarization curves recorded from the solutions of different concentrations of Pb 2þ ions are shown in Fig.…”

Section: Experimental Measured Polarization Curvesmentioning

confidence: 99%

“…However, formation of individual grains or granules at low overpotentials was not possible to explain by this assumption. Recently, it was discussed [9] the linear dependence of current density on the overpotential for the fast electrochemical processes, and it was shown that this linear dependence can be ascribed to the ohmic control of the electrodeposition process [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%