Pattern Formation in Catalytic H<sub>2</sub> Oxidation on Rh: Zooming in by Correlative Microscopy
Johannes Zeininger, Philipp Winkler, Maximilian Raab, Yuri Suchorski, Maurício J. Prieto, Liviu C. Tănase, Lucas de Souza Caldas, Aarti Tiwari, Thomas Schmidt, Michael Stöger‐Pollach, Andreas Steiger‐Thirsfeld, Beatriz Roldán Cuenya, Günther Rupprechter
Abstract
mbar pressure range by photoemission electron microscopy (PEEM), X-ray photoemission electron microscopy (XPEEM), and low-energy electron microscopy (LEEM). The latter two were used for in situ correlative microscopy to zoom in with significantly higher lateral resolution, allowing detection of an unusual island-mediated oxygen front propagation during kinetic transitions. The origin of the island-mediated front propagation was rationalized by model calculations based on a hybrid approach of microkinetic modeling and Monte Carlo simulations.