Oxygen interaction with rhodium at low pressures II. Oxygen desorption |
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Authors: | A N Salanov and V I Savchenko |
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Institution: | (1) Institute of Catalysis, 630090 Novosibirsk, Russia |
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Abstract: | Oxygen desorption on polycrystalline Rh and single crystal Rh(100) at 400–1600 K has been studied using thermal desorption and numerical calculation methods. With low surface coverages (<0.3) the adsorbed oxygen particles pentrate the metal and the diffuse back to the surface (peak 2). At >0.3 the processes of formation/decomposition of surface oxide Rh2O3 takes place (peak 1).
- O2 Rh Rh(100) 400–1600 . (<0,3) O ë ( 2), >0,3 - - (Rh2O3) ( 1). |
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