NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics

[Image: see text] 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....

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Autores principales: Borodin, Dmitriy, Rahinov, Igor, Fingerhut, Jan, Schwarzer, Michael, Hörandl, Stefan, Skoulatakis, Georgios, Schwarzer, Dirk, Kitsopoulos, Theofanis N., Wodtke, Alec M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279706/
https://www.ncbi.nlm.nih.gov/pubmed/34276859
http://dx.doi.org/10.1021/acs.jpcc.1c02965
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author Borodin, Dmitriy
Rahinov, Igor
Fingerhut, Jan
Schwarzer, Michael
Hörandl, Stefan
Skoulatakis, Georgios
Schwarzer, Dirk
Kitsopoulos, Theofanis N.
Wodtke, Alec M.
author_facet Borodin, Dmitriy
Rahinov, Igor
Fingerhut, Jan
Schwarzer, Michael
Hörandl, Stefan
Skoulatakis, Georgios
Schwarzer, Dirk
Kitsopoulos, Theofanis N.
Wodtke, Alec M.
author_sort Borodin, Dmitriy
collection PubMed
description [Image: see text] 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 E(0) = 1.766 ± 0.024 eV and diffusion barrier D(T) = 0.29 ± 0.11 eV on the (111) terrace and the stabilization energy for (110)-steps ΔE(ST) = 0.060(–0.030)(+0.015) eV. These parameters provide valuable benchmarks for theory.
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spelling pubmed-82797062021-07-15 NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics Borodin, Dmitriy Rahinov, Igor Fingerhut, Jan Schwarzer, Michael Hörandl, Stefan Skoulatakis, Georgios Schwarzer, Dirk Kitsopoulos, Theofanis N. Wodtke, Alec M. J Phys Chem C Nanomater Interfaces [Image: see text] 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 E(0) = 1.766 ± 0.024 eV and diffusion barrier D(T) = 0.29 ± 0.11 eV on the (111) terrace and the stabilization energy for (110)-steps ΔE(ST) = 0.060(–0.030)(+0.015) eV. These parameters provide valuable benchmarks for theory. American Chemical Society 2021-05-24 2021-06-03 /pmc/articles/PMC8279706/ /pubmed/34276859 http://dx.doi.org/10.1021/acs.jpcc.1c02965 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Borodin, Dmitriy
Rahinov, Igor
Fingerhut, Jan
Schwarzer, Michael
Hörandl, Stefan
Skoulatakis, Georgios
Schwarzer, Dirk
Kitsopoulos, Theofanis N.
Wodtke, Alec M.
NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title_full NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title_fullStr NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title_full_unstemmed NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title_short NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics
title_sort no binding energies to and diffusion barrier on pd obtained with velocity-resolved kinetics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279706/
https://www.ncbi.nlm.nih.gov/pubmed/34276859
http://dx.doi.org/10.1021/acs.jpcc.1c02965
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