Chemical Deposition of Nickel Platinum Alloy on the Surface of TiO2 Nanotubes as a Catalyst for Methanol Oxidation

This work demonstrates the chemical deposited of nickel platinum alloy NiPt/TONs on the surface of titanium oxides nanotubes (TONs) support pre-fabricated by anodic oxidation of Ti foil in HF solution followed by annealing in air and in N2 atmosphere. The structural, surface morphology and compositi...

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Bibliographic Details
Published in:International journal of electrochemical science 2015-04, Vol.10 (4), p.3680-3692
Main Authors: Ghanem, Mohamed A., Al-Mayouf, Abdullah M., Shaddad, Maged N., Alhoshan, Mansour S., Al-Shalawi, Mater N.
Format: Article
Language:English
Subjects:
Chemical deposition
cyclic voltammetry
Methanol electrooxidation
NiPt catalyst
TiO2 nanotubes array
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Summary:This work demonstrates the chemical deposited of nickel platinum alloy NiPt/TONs on the surface of titanium oxides nanotubes (TONs) support pre-fabricated by anodic oxidation of Ti foil in HF solution followed by annealing in air and in N2 atmosphere. The structural, surface morphology and composition of NiPt/TONs catalysts were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and the inductive coupled plasma optical emission spectroscopy (ICP-OES). The electrochemical behavior and methanol catalytic performance and stability of the NiPt/TONs catalysts were investigated by cyclic voltammetry and compared with similar catalysts in acidic and alkaline solutions. The results indicate that the NiPt/TONs shows higher catalytic activity for methanol electro-oxidation in both acidic and alkaline solution than that reported in the literature. This implies that TONs have promising potential to be used as a support for catalysis applications.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)06571-9