Libuda J (2004)
Publication Status: Published
Publication Type: Journal article
Publication year: 2004
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Book Volume: 304
Pages Range: 1639-1644
Journal Issue: 5677
We show that coverage fluctuations on catalyst particles can drastically alter their macroscopic catalytic behavior. Scrutinizing the occurrence of kinetic bistabilities, it is demonstrated by molecular beam experiments on model catalysts that macroscopically observable bistabilities vanish completely with decreasing particle size, as previously predicted by theory. The effect is attributed to fluctuation-induced transitions between two kinetic reaction regimes, with a transition rate controlled by both particle size and surface defects. These results suggest that fluctuation-induced effects represent a general phenomenon affecting the reaction kinetics on nanostructured surfaces.
APA:
Libuda, J. (2004). Fluctuations and bistabilities on catalyst nanoparticles. Science, 304(5677), 1639-1644. https://doi.org/10.1126/science.1097513
MLA:
Libuda, Jörg. "Fluctuations and bistabilities on catalyst nanoparticles." Science 304.5677 (2004): 1639-1644.
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