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Influence of an inert electrolyte on the morphology of quasi-two-dimensional electrodeposits
Trigueros, Pedro Pablo; Sagués i Mestre, Francesc; Claret Bonet, Josep
Universitat de Barcelona
The influence of an inert electrolyte (sodium sulfate) on quasi-two-dimensional copper electrodeposition from a nondeaerated aqueous copper sulfate solution has been analyzed. The different morphologies for a fixed concentration of CuSO4 have been classified in a diagram in terms of the applied potential and the inert electrolyte concentration. The main conclusion is the extension of the well-known Ohmic model for the homogeneous growth regime for copper sulfate solutions with small amounts of sodium sulfate. Moreover, we have observed the formation of fingerlike deposits at large applied potential and inert electrolyte concentration values, before hydrogen evolution becomes the main electrode reaction.
26-07-2011
Química de superfícies
Pel·lícules fines
Nanoquímica
Cristal·lografia
Surface chemistry
Thin films
Nanochemistry
Crystallography
(c) American Physical Society, 1994
Artículo
The American Physical Society
         

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