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Adsorption of Alkanes and Their Coadsorption with Hydrogen on Evaporated Palladium Thin Films
ADSORPTION
OF ALKANES AND THEIR COADSORPTION WITH
HYDROGEN ON EVAPORATED PALLADIUM THIN FILMS W. Lisowski,
R. Du~
Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warszawa, ul. Kasprzaka 44/52, Poland Adsorption of methane, ethane and propane and their coadsorptlon with hydrogen on evaporated palladium thin films at 195 K
and 298 K
was
Investigated by means of surface potential change measurements, observation of gas phase composition and volumetric measurements. Adsorption at 195 K occurs without any significant decomposition of hydrocarbon admolecules while at 298 K, approximately 10% of total deposit of ethane and propane can be decomposed. Propane admolecules promote strongly incorporation of coadsorbed hydrogen adatoms Into the bulk of palladium film at 195 K.
272
OF ALKANES AND THEIR COADSORPTION WITH
HYDROGEN ON EVAPORATED PALLADIUM THIN FILMS W. Lisowski,
R. Du~
Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warszawa, ul. Kasprzaka 44/52, Poland Adsorption of methane, ethane and propane and their coadsorptlon with hydrogen on evaporated palladium thin films at 195 K
and 298 K
was
Investigated by means of surface potential change measurements, observation of gas phase composition and volumetric measurements. Adsorption at 195 K occurs without any significant decomposition of hydrocarbon admolecules while at 298 K, approximately 10% of total deposit of ethane and propane can be decomposed. Propane admolecules promote strongly incorporation of coadsorbed hydrogen adatoms Into the bulk of palladium film at 195 K.
272