CO adsorption and thermal stability of Pd deposited on a thin FeO(1 1 1) film

Meyer, Randall J.; Lahav, Doron; Schalow, Tobias; Laurin, Mathias; Brandt, Björn; Schauermann, Swetlana; Guimond, Sebastien; Klüner, Thorsten; Kuhlenbeck, Helmut; Libuda, Jörg; Shaikhutdinov, Shamil; Freund, Hans-Joachim

doi:10.1016/j.susc.2005.05.011

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CO adsorption and thermal stability of Pd deposited on a thin FeO(1 1 1) film

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Meyer, Randall J.
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21785

Lahav, Doron
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22059

Schalow, Tobias
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21787

Laurin, Mathias
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21400

Brandt, Björn
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22062

Schauermann, Swetlana
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21584

Guimond, Sebastien
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21738

Klüner, Thorsten
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21774

Kuhlenbeck, Helmut
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21802

Libuda, Jörg
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22106

Shaikhutdinov, Shamil
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21524

Freund, Hans-Joachim
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Meyer, R. J., Lahav, D., Schalow, T., Laurin, M., Brandt, B., Schauermann, S., et al. (2005). CO adsorption and thermal stability of Pd deposited on a thin FeO(1 1 1) film. Surface Science, 586(1-3), 174-182. doi:10.1016/j.susc.2005.05.011.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0810-E

Abstract

We have studied adsorption of CO on Pd deposited on a thin FeO(1 1 1) film grown on a Pt(1 1 1) substrate using temperature programmed desorption, infrared reflection absorption spectroscopy and molecular beam techniques. At sub-monolayer Pd coverage, where formation of Pd(1 1 1) single layer islands upon heating is suggested on the basis of scanning tunneling microscopy studies, the CO desorption temperature is 70–100 K lower than on a Pd(1 1 1) single crystal, which agrees well with the results of ab initio calculations. However, annealing to 600 K results in strong reduction of the CO adsorption capacity, which is rationalized in terms of significant Pd migration through the film as revealed by angular resolved photoelectron spectroscopy measurements using synchrotron radiation. The results demonstrate the complexity of Pd interaction with the thin FeO(1 1 1) film at elevated temperatures.