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Surface characterization of electrodeposited silver on activated carbon for bactericidal purposes

“…Although both deposition processes work adequately, there is a lack of adherence of the silver films that are deposited directly. Similar behavior is observed for electrochemical systems due to a high-density exchange current that promotes preferential threedimensional dendrite-like crystal growth [11][12][13]. A challenging issue for silver deposition on carbons is the production of a smooth, uniform, compact, and adherent deposit, which also depends on potential, silver concentration, and surface properties [14].…”

“…A rather linear and slightly tilted i vs E response (even far away from the equilibrium potential for all rotation rates), indicating that the deposition and dissolution rates are controlled by a high potential drop across the solution. On the other hand, the silver deposit obtained on the surface of the C-RDE was compact and adherent, completely different from the corresponding deposit obtained in another set of experiments in the absence of tartaric acid, where a typical three-dimensional growth of silver from nitrate solutions is prevalent and silver crystals easily detach from the surface of the electrode [11][12][13]. The results of the chronoamperometric study with and without tartaric acid are shown in Fig.…”

General Theory of Disperse Metal Electrodeposits Formation

“…(1.5) in Eq. (1.29) and further rearranging gives (3) r > (d À h), spherical diffusion zones are not formed (Reprinted from [13] with permission from the Serbian Chemical Society and [7,10] with permission from Springer. )…”

Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

“…Electrodeposition processes of the normal metals are accompanied by formation of various morphological forms, such as granules, crystals of regular and irregular shapes, needle-like and spongy-like particles, dendrites, etc. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] During many years systematic investigations, 24,25 differences in formation of the morphological forms of these metals were specified. It is concluded that Pb and Zn can be denoted as the limiting cases from the group of the normal metals.…”