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dc.creatorNikolić, Nebojša D.
dc.creatorPopov, Konstantin I.
dc.creatorIvanović, Evica
dc.creatorBranković, Goran
dc.creatorStevanović, Sanja
dc.creatorŽivković, Predrag M.
dc.date.accessioned2019-01-30T17:46:36Z
dc.date.available2019-01-30T17:46:36Z
dc.date.issued2015
dc.identifier.issn1572-6657
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1769
dc.description.abstractElectrodeposition of lead from the concentrated nitrate electrolyte in the potentiostatic regime of electrolysis has been investigated by the analysis of the potentiostatic current transients and scanning electron microscope (SEM). It was found that the process of Pb nucleation from the concentrated electrolyte follows Scharifker model based on the 3D (three-dimensional) instantaneous nucleation with diffusion-controlled growth. The deviations of the obtained dependencies from the theoretical prediction for this model have been also discussed. Needle-like and fern-like dendrites, as well as crystals of irregular shape (precursors of dendrites) were formed in the diffusion controlled electrodeposition. The SEM analysis of these dendritic forms revealed their 2D (two-dimensional) growth. The size of needle-like dendrites was considerably larger than the size of both the fern-like dendrites and the irregular crystals. Although the electrodeposition process occurred inside the linear diffusion layer of the macroelectrode, the shape and size of dendrites were determined by the effect of local diffusion fields formed around tips (spherical diffusion) and top edges (cylindrical diffusion) of protrusions formed in the initial stage of the electrodeposition. The growth rates under the conditions of spherical and cylindrical diffusion control were mutually compared and a faster growth under the conditions of the spherical, in relation to the cylindrical diffusion, was proved. The effect of the current density distribution on formation of the final forms of Pb dendrites was also discussed.en
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172046/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Electroanalytical Chemistry
dc.subjectElectrodepositionen
dc.subjectLeaden
dc.subjectNucleationen
dc.subjectDendriteen
dc.subjectDiffusionen
dc.subjectScanning electron microscope (SEM)en
dc.titleThe potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyteen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractИвановиц, Евица Р; Бранковиц, Горан; Попов, Константин И.; Николић, Небојша; Зивковиц, Предраг М; Стевановић, Сања;
dc.citation.volume739
dc.citation.spage137
dc.citation.epage148
dc.citation.other739: 137-148
dc.citation.rankM21
dc.identifier.doi10.1016/j.jelechem.2014.12.020
dc.identifier.rcubConv_3299
dc.identifier.scopus2-s2.0-84920644632
dc.identifier.wos000350189800018
dc.type.versionpublishedVersion


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