Our news journalists obtained a quote from the research, "The platinum samples were physically characterized by means of Transmission Electron Microscopy (TEM), Small Angle X-ray Scattering (SAXS), X-ray Absorption Spectroscopy (XAS) and X-ray Photo-electron Spectroscopy (XPS). Their electrochemical activity was also investigated by cyclic and linear voltammetry techniques. TEM analysis shows homogeneously dispersed platinum nanoparticles with an average particle size of 2 nm in all the synthesized samples. Form factor (morphology model) and particle size were determined by SAXS, the data adjusted to spherical Pt nanoparticles in both synthesis methods. XAS studies at the Pt L-3-edge shows a close interaction of Pt with the support material, i.e. C or TiO2. XPS analysis reveals surface modifications that induce electronic changes on Pt-TiO2-C."
According to the news editors, the research concluded: "Significant differences in the ORR electrochemical activity were correlated to the TiO2 loading and the synthesis procedure."
For more information on this research see: Electrochemical and XAS investigation of oxygen reduction reaction on Pt-TiO2-C catalysts.
The news correspondents report that additional information may be obtained from
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