| Publication Type |
Journal Article |
| Title |
Electrodeposition of gold thin films from 1-butyl-1-methylpyrrolidinium dicyanamide Au3+ solutions |
| Authors |
A. I. de Sa S Eugénio Silvia Quaresma C. M. Rangel R Vilar |
| Groups |
CSSE |
| Journal |
THIN SOLID FILMS |
| Year |
2011 |
| Month |
July |
| Volume |
519 |
| Number |
19 |
| Pages |
6278-6283 |
| Abstract |
The electrodeposition of gold from a HAuCl4 center dot 3H(2)O solution in 1-butyl-1-methyl-pyrrolidinium dicyanamide is reported in the present paper. A cyclic voltammetry study of the electrochemical behaviour of the plating solution showed that the reduction of gold occurs by a two-step process. Gold thin films were obtained by electrodeposition on nickel substrates under potentiostatic control at a constant potential of -1 V. for temperatures from 293 to 353 K and deposition times of 1500 and 4500 s. The films prepared at 293 and 333 K consist of 9-15 nm diameter polyhedral particles aggregated in clusters 50-250 nm in diameter. The films deposited at 353 K consist of a quasi-continuous film of nanoparticles covered by nanosized dendrites. This morphology evolves towards a globular structure with increasing deposition time. (C) 2011 Elsevier B.V. All rights reserved. |
| DOI |
http://dx.doi.org/10.1016/j.tsf.2011.03.135 |
| ISBN |
|
| Publisher |
|
| Book Title |
|
| ISSN |
0040-6090 |
| EISSN |
|
| Conference Name |
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| Bibtex ID |
ISI:000292720000014 |
| Observations |
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