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4.
Palladium Nanoparticle Supported on TiO2 Nanotubes as New
Catalysts for Hydrazine Electro-Oxidation
M. G.
Hosseini*,
M. M. Momeni, M. Faraji
Electrochemistry Research Laboratory, Department of Physical
Chemistry, Chemistry Faculty, University of Tabriz, Tabriz, Iran
*Corresponding. Tel.: +984113393138 ; fax: +984113340191Email:
mg-hosseini@tabrizu.ac.ir
Abstract:
Palladium
nanoparticle (Pd-NPs)-Titanium oxide nanotubes (TiO2-NTs)
electrodes are prepared by a simple method using electroless
deposition of palladium nanoparticles on TiO2-NTs
electrodes as support. TiO2-NTs electrodes are
fabricated by anodizing titanium foil in an ethylene glycol
electrolyte containing fluoride ion. Scanning electron
microscopy and energy-dispersive X-ray spectroscopy results
indicate that TiO2 layers consist of individual
tubes of about 60-90 nm diameters and palladium
nanoparticles are well-dispersed on the surface of TiO2-NTs
support. The electro-catalytic properties of
Pd-NPs/TiO2-NTs electrodes
for electro-oxidation of hydrazine are investigated. The
results showed that compared to flat palladium electrodes,
Pd-NPs/TiO2-NTs electrodes shows much higher
electrochemical activity.
Key Words: Pd-NPs/TiO2-NTs electrode, Hydrazine
electro-oxidation, TiO2 nanotubes
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