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In situ Model Catalysis

Reactive Deposition of Highly Strained NiO as Model Catalyst


In situ growth experiment reveal a 1 ML thick wetting layer, which changes to bulk-like NiO at higher thickness showing two typical contributions NiO main peak and an undercoordinated / non local screening contribution [2]. The wetting layer is described in literature [1] as Ni3O4.

Reactivity of NiO towards Reduction with CO

After the surface is reduced, diffusion is the rate determining step (at coverages <1 ML).

For fresh films the surface is reduced after 1ML.

[1] S. Agnoli, et al.  J. Phys. Chem. B. 109 (2005) 17197.

[2] L. Soriano, et al. Phys. Rev. B 75 (2007) 165317.