Investigation of nanostructured platinum–nickel supported on the titanium surface as electrocatalysts for alkaline fuel cells

► Titaniums as a support for catalysts. ► Electrocatalysts for oxidation of borohydride, methanol and ethanol. ► Catalysts fabrication by galvanic displacement of nickel layer by platinum enables growth of nano-sized metal particles. This study involves the formation of nanostructured platinum–nicke...

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Bibliographic Details
Published in:Journal of power sources 2012-06, Vol.208, p.242-247
Main Authors: Tamašauskaitė-Tamašiūnaitė, L., Balčiūnaitė, A., Vaiciukevičienė, A., Selskis, A., Pakštas, V.
Format: Article
Language:English
Subjects:
Borohydride
Catalysis
Catalysts
Ethanol
Ethyl alcohol
Methanol
Methyl alcohol
Nanomaterials
Nanostructure
Oxidation
Platinum–nickel
Titanium
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Summary:► Titaniums as a support for catalysts. ► Electrocatalysts for oxidation of borohydride, methanol and ethanol. ► Catalysts fabrication by galvanic displacement of nickel layer by platinum enables growth of nano-sized metal particles. This study involves the formation of nanostructured platinum–nickel supported on the titanium surface catalysts using the galvanic displacement technique and investigation of their electrocatalytic activity toward the oxidation of borohydride, methanol and ethanol in an alkaline media by cyclic voltammetry and chronoamperometry. Scanning electron microscopy, Energy Dispersive X-ray Spectroscopy and X-ray diffraction were used to characterize the surface structure, composition and morphology. The nanoPt(Ni)/Ti and nanoPt/Ti catalysts exhibited a higher catalytic efficiency to the oxidation of borohydride, ethanol and methanol as compared with that of pure Pt.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2012.02.079