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  NO binding energies to and diffusion barrier on Pd obtained with velocity-resolved kinetics

Borodin, D., Rahinov, I., Fingerhut, J., Schwarzer, M., Hörandl, S., Skoulatakis, G., et al. (2021). NO binding energies to and diffusion barrier on Pd obtained with velocity-resolved kinetics. The Journal of Physical Chemistry C, 125(21), 11773-11781. doi:10.1021/acs.jpcc.1c02965.

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 Creators:
Borodin, D.1, Author              
Rahinov, I., Author
Fingerhut, J., Author
Schwarzer, M., Author
Hörandl, S., Author
Skoulatakis, G.2, Author              
Schwarzer, D.2, Author              
Kitsopoulos, T. N.3, Author              
Wodtke, A. M.3, Author              
Affiliations:
1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_persistent22              
2Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              
3Department of Dynamics at Surfaces, MPI for biophysical chemistry, Max Planck Society, ou_578600              

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Free keywords: Desorption, Reaction rate theory, Binding energy, Diffusion, Kinetics
 Abstract: We report nitric oxide (NO) desorption rates from Pd(111) and Pd(332) surfaces measured with velocity-resolved kinetics. The desorption rates at the surface temperatures from 620 to 800 K span more than 3 orders of magnitude, and competing processes, like dissociation, are absent. Applying transition state theory (TST) to model experimental data leads to the NO binding energy E0 = 1.766 ± 0.024 eV and diffusion barrier DT = 0.29 ± 0.11 eV on the (111) terrace and the stabilization energy for (110)-steps ΔEST = 0.060–0.030+0.015 eV. These parameters provide valuable benchmarks for theory.

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Language(s): eng - English
 Dates: 2021-05-242021-06-03
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.jpcc.1c02965
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Title: The Journal of Physical Chemistry C
Source Genre: Journal
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Pages: - Volume / Issue: 125 (21) Sequence Number: - Start / End Page: 11773 - 11781 Identifier: -