Björn Kaemena

TL;DR: In this article, a growth and morphology study of the inverse catalyst model system ceria on Ru(0001) was performed by applying spectroscopic photoemission and low-energy electron microscopy.

TL;DR: In this paper, it is demonstrated that highly ordered, mostly $B$-oriented, epitaxial ceria films can be achieved by preadsorption of a monolayer of atomic chlorine, effectively passivating the substrate and thereby suppressing cerium silicate and silicon oxide formation at the interface.

TL;DR: Although even at this high growth temperature the micron-sized CeO₂(111) islands are found to exhibit different lattice registries with respect to the hexagonal substrate, the combination of dark-field LEEM and local intensity-voltage analysis reveals that the oxidation state of the islands is homogeneous down to the 10 nm scale.

TL;DR: In this article, a combined experimental and theoretical study of the local chemistry of cerium oxide films and islands on Ru(0001) is presented based on intensityvoltage low-energy electron microscopy [$I(V)$-LEEM] and resonant x-ray photoemission spectroscopy.

TL;DR: In this article, it was shown that ultrathin, highly ordered, continuous films of cerium dioxide may be prepared on silicon following substrate prepassivation using an atomic layer of chlorine.