While density functional theory (DFT) at the generalized gradient approximation (GGA) level has made great success in catalysis, it fails in some important systems such as the adsorption of the oxygen molecule on the Ag(111) surface. Previous DFT studies at the GGA level revealed theoretical inconsistencies on the adsorption energies and dissociation barriers of O2 on Ag(111) in comparison with the experimental conclusion. In this study, the strongly constrained and appropriately normed-revised Vydrov van Voorhis van der Waals correction functional (SCAN-rVV10) method at the meta-GGA level with the nonlocal van der Waals (vdW) force correction was used to reinvestigate the adsorption properties of O2 on the Ag(111) surface. The SCAN-rVV10 results successfully confirm the experimental observation that both molecular and dissociative adsorptions can exist for oxygen on Ag(111). The calculated adsorption energy for the physisorption state and the relevant dissociation energy barrier are close to the experimental data. It demonstrates that SCAN-rVV10 can outperform functionals at the GGA level for O2/Ag(111). Therefore, our findings suggest that SCAN-rVV10 can be the desired method for systems where the correct description of intermediate-ranged vdW forces is essential, such as the physisorption of small molecules on the solid surface.
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21 December 2021
Research Article|
December 15 2021
Reinvestigating oxygen adsorption on Ag(111) by using strongly constrained and appropriately normed semi-local density functional with the revised Vydrov van Voorhis van der Waals force correction
Special Collection:
Beyond GGA Total Energies for Solids and Surfaces
Jack J. Hinsch
;
Jack J. Hinsch
School of Environment and Science, Centre for Catalysis and Clean Energy, Griffith University
, Gold Coast QLD 4222, Australia
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Junxian Liu
;
Junxian Liu
School of Environment and Science, Centre for Catalysis and Clean Energy, Griffith University
, Gold Coast QLD 4222, Australia
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Yun Wang
Yun Wang
a)
School of Environment and Science, Centre for Catalysis and Clean Energy, Griffith University
, Gold Coast QLD 4222, Australia
a)Author to whom correspondence should be addressed: yun.wang@griffith.edu.au
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a)Author to whom correspondence should be addressed: yun.wang@griffith.edu.au
Note: This paper is part of the JCP Special Topic on Beyond GGA Total Energies for Solids and Surfaces.
J. Chem. Phys. 155, 234704 (2021)
Article history
Received:
September 30 2021
Accepted:
November 23 2021
Citation
Jack J. Hinsch, Junxian Liu, Yun Wang; Reinvestigating oxygen adsorption on Ag(111) by using strongly constrained and appropriately normed semi-local density functional with the revised Vydrov van Voorhis van der Waals force correction. J. Chem. Phys. 21 December 2021; 155 (23): 234704. https://doi.org/10.1063/5.0073407
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