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Supported by the excellently developed multilateral multilateral RH nanocrystals, and amorphous alumina at NACL (001), were selected to study the effects of oxidation and reduction of particles. MacroStruck end and crystal habit on catalytic properties, surface structure, and crystalline surface structure was determined by hedesolution electronic microprocessor assisted by digital image processing and contrast simulation, by weak beam dark field imaging, and B selected field electron diffraction . Hydrogenellis of Alcons was tested by MicroCector Kinetics in their catalytic performance ins. In the finished state, most of the Rh crystalline smooth, half-face index-index was half and half-octaadadral and half-tetrahedral size were performed. Due to their regular habit, a well-defined early stage in the study of these particles representative activation - Dandced morphology changes after oxidation of 575 K is a thin surface oxide It was clear, while oxidation in 725 K was taken to the orgated overgrowth of hexagonal α-Rh2O3 RH. Oxidation 725 K in Falloweed B525 K, Distributed surfaces with Rh particles, such as Polyestric laline RH particle or Sandwich Strikees RH and RH2O3. However, when the deficiency of high temperature in oxidation 725 K in 725 Kashmir, the valve voloade, cum-millindedex phasets were re-established. In high turnover frequencies, the catalysts of the observer are primarily Rh-particles with distruded ("thick") surfaces, while smoothly dominating the packed packaged aspects Results in a less active catalyst confirm that high-index passes (low-coordinated sites) are preferred for hydrogenysis.