Nanostructured Gold-Nickel/Titania Nanotubes Electrocatalysts for Hydrazine Oxidation
The morphology, structure and composition of the prepared nanostructured catalysts were examined by field emission scanning electron microscopy, energy dispersive X-ray analysis and inductively coupled optical emission spectroscopy. The electrocatalytic activity of the prepared catalysts was investigated towards the oxidation of hydrazine in alkaline medium by means of cyclic voltammetry and chronoamperometry.
Data on the pecularities of various electrodes are compared and discussed on the basis of electrochemical data. The prepared Au(Ni)/TiO2-NTs catalysts with different Au loadings possesses a higher electrocatalytic activity towards the oxidation of hydrazine in alkaline medium as compared to that of TiO2-NTs and Au deposited electrochemically on the TiO2-NTs and seem to be a promising anode materials for direct hydrazine fuel cells.
J. Rakauskas acknowledges support by project "Promotion of Student Scientific Activities" (VP1-3.1-ŠMM-01-V-02-003) from the Research Council of Lithuania. This project is funded by the Republic of Lithuania and European Social Fund under the 2007-2013 Human Resources Development Operational Programme’s priority 3.