Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 14, Issue 4, Pages 675-679Publisher
SPRINGER
DOI: 10.1007/s10008-009-0840-3
Keywords
Platinum nanoparticles; Electrophoretic deposition; AFM; Nickel hydroxide
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Funding
- CNPq [200261/2008-8]
- Fapesp [05/59560-9]
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The present work describes the synthesis of platinum nanoparticles followed by their electrophoretic deposition onto transparent fluorine-doped tin oxide electrodes. The nano-Pt-modified electrodes were characterized by voltammetric studies in acidic solutions showing a great electrocatalytic behavior towards H+ reduction being very interesting for fuel cell applications. Morphological characterization was performed by atomic force microscopy on different modified electrodes showing a very rough surface which can be tuned by means of time of deposition. Also, nickel hydroxide thin films were galvanostatically grown onto these electrodes showing an interesting electrochemical behavior as sharper peaks, indicating a faster ionic exchange from the electrolyte to the film.
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