Scanning tunneling microscopy evidence for the Mars-van Krevelen type mechanism 
of low temperature CO oxidation on an FeO(1 1 1) film on Pt(1 1 1)

Lewandowski, Mikolaj; Groot, Irene; Shaikhutdinov, Shamil Kamilovich; Freund, Hans-Joachim

doi:10.1016/j.cattod.2011.08.033

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Scanning tunneling microscopy evidence for the Mars-van Krevelen type mechanism of low temperature CO oxidation on an FeO(1 1 1) film on Pt(1 1 1)

MPS-Authors

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Lewandowski, Mikolaj
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21575

Groot, Irene
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22106

Shaikhutdinov, Shamil Kamilovich
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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edoc 1578087.pdf
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引用

Lewandowski, M., Groot, I., Shaikhutdinov, S. K., & Freund, H.-J. (2012). Scanning tunneling microscopy evidence for the Mars-van Krevelen type mechanism of low temperature CO oxidation on an FeO(1 1 1) film on Pt(1 1 1). Catalysis today, 181(1), 52-55. doi:10.1016/j.cattod.2011.08.033.

引用: https://hdl.handle.net/11858/00-001M-0000-0010-50F9-9

要旨

We provide experimental evidence that the low temperature CO oxidation reaction on an ultrathin FeO(1 1 1) film on Pt(1 1 1) proceeds through the Mars-van Krevelen type mechanism which includes the following steps: the FeO film is oxidized into an FeO_2−x film with trilayer O–Fe–O structure; CO reacts with the weakly bound, topmost oxygen atoms, effectively reducing the FeO _2−x surface to FeO-like; and the subsequent oxidation by O₂ recovers the FeO_2−x structure.