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Methods are developed to describe catalytic reactions on multi-facetted surfaces in high electric fields in the conditions of field emission microscopy. These methods are applied to the hydrogen–oxygen–rhodium system for which a mean-field kinetic model is established. This model is shown to reproduce not only the nonequilibrium regimes of bistability and oscillations and their nanopatterns, but also...
We have studied the interaction of hydrogen with Rh tips under imaging conditions of field ion microscopy. In electric fields of 2.4 V/Å, in the presence of hydrogen gas at 10−5 mbar and at cryogenic temperatures, discrete events of field evaporation were found to form (1×2) patterns on Rh{110} due to the removal of Rh atoms along [011] the direction of densely packed atomic chains. This is different...
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