dorsal/arxiv
View SchemaHeterogeneous nucleation - current transients under chemical reaction control
| Authors | P. C. T. Dajello, I. Mozolevski, Z. G. S. Kipervaser |
|---|---|
| Categories | |
| ArXiv ID | physics/0210105 |
| URL | https://arxiv.org/abs/physics/0210105 |
Abstract
Heterogeneous nucleation on catalytic surfaces plunged into a fluid is described through a stochastic model. To generate this non-equilibrium process we assume that the turn on of a electrostatic potential triggers a complex dynamics that includes a free Brownian motion, a reaction kinetic and a stimulated migration before the final adhesion of ions on the surface (electrode). At, when the potential is switched on, the spatial symmetry is broken and a two-stage process is developed. First the ion undergoes a change in its electrochemical character (at some region of the space) and then reacts at some specific points to stick together on the surface. The continuous addition of ions develops a material deposit connected to the current transient signals measured in electrochemical deposition processes. Unlike current models found in the literature, this procedure avoids the computation of the area covered by the diffusion zones, allowing a formalism skill to describe equally well the absorption of ions by channels on electrified surfaces. The theory is applied to the electrodeposition of nickel on n-silicon and explains the failure of standard three-dimensional nucleation models to reproduce situations where interfacial relations control the dynamics. It is shown that, processes dominated by chemical reactions on the electrode can not be classified as possessing an exclusively instantaneous or progressive character, rather, they mix together these two limiting forms of nuclei activation to defines the current transients in its beginning.
{
"annotation_id": "68cfd85a-db7c-464c-86d7-2200a989d1d8",
"date_created": "2026-03-02T18:00:43.485000Z",
"date_modified": "2026-03-02T18:00:43.485000Z",
"file_hash": "34cdd721110c9ac506befca5922fa9ebe4a52628c3d31f264595e5fae4bd091c",
"private": false,
"record": {
"abstract": "Heterogeneous nucleation on catalytic surfaces plunged into a fluid is\ndescribed through a stochastic model. To generate this non-equilibrium process\nwe assume that the turn on of a electrostatic potential triggers a complex\ndynamics that includes a free Brownian motion, a reaction kinetic and a\nstimulated migration before the final adhesion of ions on the surface\n(electrode). At, when the potential is switched on, the spatial symmetry is\nbroken and a two-stage process is developed. First the ion undergoes a change\nin its electrochemical character (at some region of the space) and then reacts\nat some specific points to stick together on the surface. The continuous\naddition of ions develops a material deposit connected to the current transient\nsignals measured in electrochemical deposition processes. Unlike current models\nfound in the literature, this procedure avoids the computation of the area\ncovered by the diffusion zones, allowing a formalism skill to describe equally\nwell the absorption of ions by channels on electrified surfaces. The theory is\napplied to the electrodeposition of nickel on n-silicon and explains the\nfailure of standard three-dimensional nucleation models to reproduce situations\nwhere interfacial relations control the dynamics. It is shown that, processes\ndominated by chemical reactions on the electrode can not be classified as\npossessing an exclusively instantaneous or progressive character, rather, they\nmix together these two limiting forms of nuclei activation to defines the\ncurrent transients in its beginning.",
"arxiv_id": "physics/0210105",
"authors": [
"P. C. T. Dajello",
"I. Mozolevski",
"Z. G. S. Kipervaser"
],
"categories": [
"physics.chem-ph"
],
"title": "Heterogeneous nucleation - current transients under chemical reaction control",
"url": "https://arxiv.org/abs/physics/0210105"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "370ff721-d7c8-4a71-9fbf-1c1c942917a1",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}