Co-adsorption of Irreversibly Adsorbing Sb and Te on Pt(111)

Summary The interaction between the irreversibly adsorbed oxy-genated Sb and Te on Pt(111) depends on the procedure ofadsorption. A simultaneous adsorption of Sb and Te led tohomogeneously mixed layer of the two oxygenated metalions, while a sequential adsorption in the order of Sb and Teresulted to separate domains of the respective oxygenatedmetal ions. Due to the different adsorption abilities of Sb andTe, mixed layers of Sb and Te were formed when adsorptionof two metal ions was performed sequentially in the order ofTe and Sb. The presented work is not able to provide anyatomic level picture concerning co-adsorption process, sothat further works may be followed. Acknowledgement. This work was supported by theKorean Science and Engineering Foundation (R05-2004-000-10247-0(2004)). References 1. Iwasita, T. In Handbook of Fuel Cells: Fudamentals Technologyand Applications ; Vielstich, W.; Lamm, A.; Gasteiger, H. A., Eds.;John Wiley & Sons: Chichester, 2003; Vol. 2, p 603. 2. Reddington, E.; Sapienza, A.; Gurau, B.; Viswanathan, R.;Sarangapani, S.; Smotkin, E. S.; Mallouk, T. E.