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Powell A, Gerrits N, Tchakoua T, Somers MF, Busnengo HF, Meyer J, Kroes GJ, Doblhoff-Dier K. Best-of-Both-Worlds Predictive Approach to Dissociative Chemisorption on Metals. J Phys Chem Lett 2024; 15:307-315. [PMID: 38169287 PMCID: PMC10788952 DOI: 10.1021/acs.jpclett.3c02972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/21/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
Predictive capability, accuracy, and affordability are essential features of a theory that is capable of describing dissociative chemisorption on a metal surface. This type of reaction is important for heterogeneous catalysis. Here we present an approach in which we use diffusion Monte Carlo (DMC) to pin the minimum barrier height and construct a density functional that reproduces this value. This predictive approach allows the construction of a potential energy surface at the cost of density functional theory while retaining near DMC accuracy. Scrutinizing effects of energy dissipation and quantum tunneling, dynamics calculations suggest the approach to be of near chemical accuracy, reproducing molecular beam sticking experiments for the showcase H2 + Al(110) system to ∼1.4 kcal/mol.
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Affiliation(s)
- Andrew
D. Powell
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Nick Gerrits
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Theophile Tchakoua
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Mark F. Somers
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Heriberto F. Busnengo
- Instituto
de Física Rosario (IFIR), CONICET-UNR, 2000 Rosario, Argentina
- Facultad
de Ciencias Exatas, Ingeniería y
Agrimensura, UNR, 2000 Rosario, Argentina
| | - Jörg Meyer
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Geert-Jan Kroes
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
| | - Katharina Doblhoff-Dier
- Leiden
Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands
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