Hreels studies of Hads effect on NO adsorption on Pt(111) |
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| Authors: | M Yu Smirnov A R Cholach and V V Gorodetskii |
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| Institution: | (1) Institute of Catalysis, 630090 Novosibirsk, USSR |
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| Abstract: | HREELS studies of NO molecular adsorption on clean and hydrogen covered Pt(111) have revealed that a reversible transition between bridge ( 1) and on-top (2) states of NOads is realized in the (NO+H2)/Pt(111) system. In the presence of Hads the adsorption of NO in the 1 state is inhibited and the main state of NOads is 2. Upon heating the layer (2-NOads+Hads) hydrogen desorption is accompanied by on-top to bridge state conversion.
                       NO      Pt(III).  , (NO+H2)/Pt(III)   (1) (2)  NO. H NO 1 , , 2 NO.   (2-NO+H) NO  .
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