What question did this study set out to answer?

Investigate the kinetics and dynamics governing the initial dissociative chemisorption probability of molecular oxygen on a Ru(001) surface.

July 22, 1996The Journal of Chemical Physics

Kinetics and dynamics of the initial dissociative chemisorption of oxygen on Ru(001)

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Authors

MWM. Clayton WheelerUniversity of Maine DSD. C. SeetsThe University of Texas at Austin CMC. Buddie MullinsThe University of Texas at Austin

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Implication

Molecular beam study demonstrates dual-regime oxygen chemisorption on Ru(001), indicating trapping-mediated pathways and electron-transfer mechanisms.

Key Points

Investigate the kinetics and dynamics governing the initial dissociative chemisorption probability of molecular oxygen on a Ru(001) surface.
Applied supersonic molecular beam techniques to measure initial sticking probability across varying incident kinetic energies, surface temperatures, and incidence angles.
Modeled precursor state dynamics using kinetic analysis to evaluate the competition between desorption and dissociation.
Low-energy chemisorption decreases with kinetic energy and surface temperature, fitting a trapping-mediated pathway with a dissociation barrier ~28 meV below the desorption barrier.
High-energy chemisorption scales with normal kinetic energy toward unity and increases with surface temperature, consistent with an electron-transfer mechanism.

Cite This Study

Wheeler et al. (1996) studied this question.

synapsesocial.com/papers/6a17fbf956b3e2ada412d4a9 https://doi.org/10.1063/1.472018

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Implication

Molecular beam study demonstrates dual-regime oxygen chemisorption on Ru(001), indicating trapping-mediated pathways and electron-transfer mechanisms.

Kinetics and dynamics of the initial dissociative chemisorption of oxygen on Ru(001)

Discussion

Member takes

Implication

Key Points

Cite This Study

Kinetics and dynamics of the initial dissociative chemisorption of oxygen on Ru(001)

Discussion

Member takes

Implication

Key Points

Cite This Study

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