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

Dmitriy Borodin; Igor Rahinov; Jan Fingerhut; Michael Schwarzer; Stefan Hörandl; Georgios Skoulatakis; Dirk Schwarzer; Theofanis N. Kitsopoulos; Alec M. Wodtke

doi:https://doi.org/10.1021/acs.jpcc.1c02965

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

Dmitriy Borodin, Igor Rahinov, Jan Fingerhut, Michael Schwarzer, Stefan Hörandl, Georgios Skoulatakis, Dirk Schwarzer, Theofanis N. Kitsopoulos, Alec M. Wodtke

Chemistry discipline

Open University of Israel

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Pages (from-to)	11773-11781
Number of pages	9
Journal	Journal of Physical chemistry c
Volume	125
Issue number	21
DOIs	https://doi.org/10.1021/acs.jpcc.1c02965
State	Published - 3 Jun 2021

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Energy
Surfaces, Coatings and Films
Physical and Theoretical Chemistry

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https://doi.org/10.1021/acs.jpcc.1c02965

Cite this

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title = "NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved 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.",

author = "Dmitriy Borodin and Igor Rahinov and Jan Fingerhut and Michael Schwarzer and Stefan H{\"o}randl and Georgios Skoulatakis and Dirk Schwarzer and Kitsopoulos, {Theofanis N.} and Wodtke, {Alec M.}",

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doi = "https://doi.org/10.1021/acs.jpcc.1c02965",

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TY - JOUR

T1 - NO Binding Energies to and Diffusion Barrier on Pd Obtained with Velocity-Resolved Kinetics

AU - Borodin, Dmitriy

AU - Rahinov, Igor

AU - Fingerhut, Jan

AU - Schwarzer, Michael

AU - Hörandl, Stefan

AU - Skoulatakis, Georgios

AU - Schwarzer, Dirk

AU - Kitsopoulos, Theofanis N.

AU - Wodtke, Alec M.

PY - 2021/6/3

Y1 - 2021/6/3

N2 - 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.

AB - 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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U2 - https://doi.org/10.1021/acs.jpcc.1c02965

DO - https://doi.org/10.1021/acs.jpcc.1c02965

M3 - Article

C2 - 34276859

SN - 1932-7447

VL - 125

SP - 11773

EP - 11781

JO - Journal of Physical chemistry c

JF - Journal of Physical chemistry c

IS - 21

ER -

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

Abstract

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