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.
N1 - Publisher Copyright:
© 2021 The Authors. Published by American Chemical Society.
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.
UR - http://www.scopus.com/inward/record.url?scp=85108089481&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.1c02965
DO - 10.1021/acs.jpcc.1c02965
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C2 - 34276859
AN - SCOPUS:85108089481
SN - 1932-7447
VL - 125
SP - 11773
EP - 11781
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 21
ER -