Collect. Czech. Chem. Commun. 1985, 50, 1801-1807

Reversible adsorption of hydrogen in adsorption-saturated acetylene layers on palladium surfaces

Josef Kopešťanský

The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague 2


Palladium films with preadsorbed acetylene layers were interacted with molecular hydrogen. Reversibly adsorbed hydrogen in the molecular form was found on the surface. The molecule probably occurs in a more reactive state than the molecule of hydrogen gas; this state precedes the dissociative adsorption of hydrogen and it may be involved in catalytic reactions of hydrocarbons on metals.