A comparative study of silver electrodeposition from pyrophosphate-cyanide and high concentration cyanide electrolytes in the presence of brighteners

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dc.contributor.authorAkben, Hatice Kübra
dc.contributor.authorTimur, Servet İbrahim
dc.date.accessioned2024-06-13T20:18:34Z
dc.date.available2024-06-13T20:18:34Z
dc.date.issued2020
dc.departmentFakülteler, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü
dc.description.abstractA study of the electrodeposition of silver from 2 different types of electrolytes; (1) neutral pyrophosphatecyanide electrolyte and (2) alkaline high concentrated cyanide electrolyte in the presence of a variety of additives such as 2-mercaptobenzothiazole, potassium selenocyanate, and potassium antimony tartrate was performed. Influence of additives and cyanide concentration on microstructure and kinetics of the cathodic processes were studied. A brightener couple, 2-mercaptobenzothiazole and potassium antimony tartrate, were combined within this investigation and detected to be highly effective for silver electrodeposition. The rapid increase in current density at the same potential interval related to grain refinement effect of potassium antimony tartrate was shown. The cyclic organic compound, 2-mercaptobenzothiazole, polarizes the reduction to high cathodic potential in pyrophosphate electrolyte. However, the sufficient levelling effect required for the mirror-bright appearance seems to be related to the high polarizing effect of the high concentration cyanide content. In the case of pyrophosphate electrolytes, sufficient levelling cannot be achieved, so semigloss coatings are obtained. The low cathodic potential electrodeposition of silver in pyrophosphate electrolyte, which is found to proceed by 3D instantaneous nucleation, is polarized to high cathodic potentials and grows into 3D progressive nucleation and diffusion-controlled growth in high concentration cyanide electrolyte.
dc.description.sponsorshipTUBITAK (The Scientific and Technological Research Council of Turkey)
dc.description.sponsorshipThe authors would like to thank TUBITAK (The Scientific and Technological Research Council of Turkey) for supporting Hatice Kubra Akben with TUBITAK-BIDEB Ph.D. scholarship.
dc.identifier.doi10.3906/kim-1907-80
dc.identifier.endpage392
dc.identifier.issn1300-0527
dc.identifier.issue2
dc.identifier.pmid33488164
dc.identifier.scopus2-s2.0-85085375343
dc.identifier.scopusqualityQ3
dc.identifier.startpage378
dc.identifier.trdizinid335248
dc.identifier.urihttps://doi.org/10.3906/kim-1907-80
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/335248
dc.identifier.urihttps://hdl.handle.net/11501/1444
dc.identifier.volume44
dc.identifier.wosWOS:000522796000009
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.institutionauthorAkben, Hatice Kübra
dc.institutionauthorid0000-0002-4037-626X
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectElectrodeposition
dc.subjectSilver
dc.subjectCyanide
dc.subjectBrighteners
dc.subjectPotassium Antimony Tartrate
dc.subject2-Mercaptobenzothiazole
dc.titleA comparative study of silver electrodeposition from pyrophosphate-cyanide and high concentration cyanide electrolytes in the presence of brighteners
dc.typeArticle

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