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Anodic and cathodic pre-treatment effects on BDD surface to deposit copper nanoparticles applied to nitrate reduction

Published online by Cambridge University Press:  16 January 2012

L. C. D. Santos ,
A. B. Couto ,
J. T. Matsushima ,
M.C. Forti ,
M. R. Baldan  and
N. G. Ferreira
L. C. D. Santos
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
A. B. Couto
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
J. T. Matsushima
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
M.C. Forti
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
M. R. Baldan
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
N. G. Ferreira
Affiliation:
Instituto Nacional de Pesquisas Espaciais (INPE), 12201-970, São José dos Campos - SP – Brazil.
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Abstract

The influence of anodic and cathodic pre-treatment on boron doped diamond (BDD) surface for copper (Cu) electrodeposition was studied to assess Cu particle consolidation on BDD electrode. These modified electrodes were applied to study the nitrate electrochemical reduction process. The obtained results showed that the BDD surface cathodically treated presented high Cu particle density as well as even distribution on the electrode surface after the electrodeposition process. For samples anodically treated the electrodeposited Cu was dispersed with lower particle density. This behavior was attributed to a high electrode conductivity imposed by the cathodic pre-treatment leading to an increase in the BDD surface hydrogenation. Therefore, one can conclude that for electrochemical nitrate reduction the anodically treated BDD has a better reproducibility. This response is attributed to the Cu particle consolidation on BDD electrode due to the oxygen surface terminations induced by the anodic pretreatment.

Keywords

diamondelectrodepositionCu
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1395: Symposium N – Diamond Electronics and Biotechnology–Fundamentals to Applications V , 2012 , mrsf11-1395-n12-12
Copyright
Copyright © Materials Research Society 2012

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References

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