Electrocatalytic oxidation of methanol on PtNiZn electrode in alkaline medium
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Date
2011Metadata
Citation
Telli, E., Solmaz, R., Kardaş, G. (2011). Electrocatalytic oxidation of methanol on Pt/NiZn electrode in alkaline medium. Russian Journal of Electrochemistry, 47(7), 811-818. DOI: 10.1134/S1023193511070135Abstract
In this study, a platinum electrode was coated with NiZn layer (Pt/NiZn) in a nickel zinc bath by
electrodeposition for use as anode material for methanol electrooxidation in alkaline solution. The electrode
prepared was etched in a concentrated alkaline solution (30% NaOH) to produce a porous and electrocata
lytic surface suitable for use in the methanol electrooxidation (Pt/NiZn). The surface morphologies and
compositions of coating before and after alkaline leaching were determined by energy dispersive X ray (EDX)
and scanning electron microscopy (SEM) techniques. The effect of NiZn coated platinum electrode for
methanol electrooxidation was investigated in 1 M NaOH solution by cyclic voltammetry (CV) and electro
chemical impedance spectroscopy (EIS) techniques. Methanol electrooxidation on Pt/NiZn electrode was
studied at various temperatures and potential scan rates. The results showed that Pt/NiZn electrode behaved
as an efficient catalyst for the electrooxidation of methanol in alkaline medium.