Abstract
Adsorption, desorption and migration of platinum and nickel on a passive carrier—graphite monolayer on rhenium—is studied. It is found that on this surface, platinum and nickel exist in two phases: in the form of physisorbed atoms and in close packed islands. The kinetics of growth and dissolution of platinum islands is studied by means of CsCl molecular dissociation with subsequent surface ionization of the dissociation product—atomic Cs. It is found that CsCl molecules dissociate on the surface of Pt or Ni islands. Using this experimentally observed fact, it is generalized in this work as a new, more sensitive method for determining the area of metallic islands.
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