Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization

Cardoso, Juliana L.; dos Santos Filho, Sebastiao G.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Electrodeposition of gold from formaldehyde-sulfite baths: bath stability and deposits characterization

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Author(s):	Cardoso, Juliana L. ^[1] ; dos Santos Filho, Sebastiao G. ^[1] Total Authors: 2
Affiliation:	^[1] Univ Sao Paulo, Escola Politecn, BR-05508900 Sao Paulo - Brazil Total Affiliations: 1
Document type:	Journal article
Source:	Química Nova; v. 34, n. 4, p. 641-645, 2011.
Web of Science Citations:	3
Abstract
It was investigated Au(I)-sulfite baths containing formaldehyde. As a result, high stability was achieved for baths containing formaldehyde concentration close to 10 mL L-1 with a lifetime superior to 600 days. On the other hand, cyclic voltammograms indicated that the increase of formaldehyde concentration in the bath promotes decreasing of the maximum cathodic current, so that, if the formaldehyde concentration is high, the surface areal concentration of gold will be low. Also, the lowest surface roughness was obtained for 10 mL L-1 of formaldehyde. (AU)

FAPESP's process:	07/01336-1 - Plating of AuxSny alloys using electrochemical deposition
Grantee:	Juliana Lopes Cardoso
Support Opportunities:	Scholarships in Brazil - Doctorate

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