Water molecules adsorbed on noble metal surfaces are of fundamental interest in surface science, in heterogeneous catalysis, and as a model for the metal/water interface. Herein, we analyze 28 water structures adsorbed on five noble metal surfaces (Cu, Ag, Au, Pd, and Pt) via density functional theory and energy decomposition analysis based on the block localized wave function technique. Structures, ranging from monomers to ice adlayers, reveal that the charge transfer from water to the surface is nearly independent from the charge transfer between the water molecules, while the polarization energies are cooperative. Dense water–water networks with small surface dipoles, such as the unit cell [experimentally observed on Pt(111)], are favored compared to the highly ordered and popular Hup and Hdown phases. The second main result of our study is that the many-body interactions, which stabilize the water assemblies on the metal surfaces, are dominated by the polarization energies, with the charge transfer scaling with the polarization energies. Hence, if an empirical model could be found that reproduces the polarization energies, the charge transfer could be predicted as well, opening exciting perspectives for force field development.
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7 August 2020
Research Article|
August 04 2020
Water adlayers on noble metal surfaces: Insights from energy decomposition analysis
Paul Clabaut;
Paul Clabaut
Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS Université Lyon 1, Laboratoire de Chimie UMR 5182
, 46 allée d’Italie, F-69364 Lyon, France
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Ruben Staub;
Ruben Staub
Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS Université Lyon 1, Laboratoire de Chimie UMR 5182
, 46 allée d’Italie, F-69364 Lyon, France
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Joachim Galiana
;
Joachim Galiana
Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS Université Lyon 1, Laboratoire de Chimie UMR 5182
, 46 allée d’Italie, F-69364 Lyon, France
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Elise Antonetti;
Elise Antonetti
Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS Université Lyon 1, Laboratoire de Chimie UMR 5182
, 46 allée d’Italie, F-69364 Lyon, France
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Stephan N. Steinmann
Stephan N. Steinmann
a)
Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS Université Lyon 1, Laboratoire de Chimie UMR 5182
, 46 allée d’Italie, F-69364 Lyon, France
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 153, 054703 (2020)
Article history
Received:
May 07 2020
Accepted:
July 15 2020
Citation
Paul Clabaut, Ruben Staub, Joachim Galiana, Elise Antonetti, Stephan N. Steinmann; Water adlayers on noble metal surfaces: Insights from energy decomposition analysis. J. Chem. Phys. 7 August 2020; 153 (5): 054703. https://doi.org/10.1063/5.0013040
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