Atomic and Macroscopic Reaction Rates of a Surface-Catalyzed Reaction
作者： Joost Wintterlin , S Volkening , TVW Janssens , Tomaso Zambelli , Gerhard Ertl
DOI: 10.1126/SCIENCE.278.5345.1931
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摘要: The catalytic oxidation of carbon monoxide (CO) on a platinum (111) surface was studied by scanning tunneling microscopy. adsorbed oxygen atoms and CO molecules were imaged with atomic resolution, their reactions to dioxide (CO 2 ) monitored as functions time. results allowed the formulation rate law that takes distribution reactants in separate domains into account. From temperature-dependent measurements, kinetic parameters obtained. Their values agree well data from macroscopic measurements. In this way, description chemical reaction achieved is based solely statistics underlying processes.
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