The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte

Preparation of porous lead from shape-controlled PbO bulk by in situ electrochemical reduction in ChCl–EG deep eutectic solvent

“…According to references [13,15], the controllable parameters enables electrodeposition technique to be a versatile and facile method to fabricate microstructure with novel architectures. The morphologies generally include cubic, octahedral, or truncated versions of these shapes and anisotropic ones such as dendrites, wires, whiskers, fibers, rods, stripes, and so on [43,44]. Thus, these crystals and granules in present study can be considered as the typical precursors of the lead particles.…”

The Cathodic Polarization Curves in Electrodeposition of Metals

“…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.…”

“…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].…”

Fundamental aspects of lead electrodeposition processes: Nucleation and growth

“…Premda se proces taloženja odvija pod difuzionom kontrolom na makroelektrodi, krajnja morfologija elektrohemijski istaloženog olova je određena lokalnim tipom difuzionog polja koje se formira oko vrhova i bočnih ivica rastućih heksagonalnih kristala [26]. Naime, uslovi sferične difuzije su ispunjeni oko vrhova, dok uslovi cilindrične difuzije oko bočnih ivica kristala.…”

“…Međutim, ako je kristal heksagonalnog oblika orijentisan svojim vrhom ka dubini rastvora (slika 6e; deo označen sa B), tada sferični difuzioni sloj se formira oko vrha, dok cilindrični difuzioni sloj oko bočnih ivica. Pošto je brzina rasta u uslovima sferične difuzije veća nego u uslovima cilindrične difuzije, tada izduženi kristali (prekursori dendrita) ili dendriti su formirani u procesu rasta [25,26]. Igličaste forme (slike 7d i e) su još jedna od tipičnih formi koje karakterišu procese elektrohemijskog taloženja olova.…”