Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles Journal of Chemical Theory and Computation Year : 2023

Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics

Abstract

Computing accurate rate constants for catalytic events occurring at the surface of a given material represents a challenging task with multiple potential applications in chemistry. To address this question, we propose an approach based on a combination of the rare event sampling method called adaptive multilevel splitting (AMS) and ab initio molecular dynamics. The AMS method requires a one-dimensional reaction coordinate to index the progress of the transition. Identifying a good reaction coordinate is difficult, especially for high dimensional problems such as those encountered in catalysis. We probe various approaches to build reaction coordinates such as support vector machine and path collective variables. The AMS is implemented so as to communicate with a density functional theory-plane wave code. A relevant case study in catalysis, the change of conformation and the dissociation of a water molecule chemisorbed on the (100) γ-alumina surface, is used to evaluate our approach. The calculated rate constants and transition mechanisms are discussed and compared to those obtained by a conventional static approach based on the Eyring–Polanyi equation with harmonic approximation. It is revealed that the AMS method may provide rate constants that are smaller than those provided by the static approach by up to 2 orders of magnitude due to entropic effects involved in the chemisorbed water molecule.
Fichier principal
Vignette du fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics.pdf (1.55 Mo) Télécharger le fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamcis Graphical abstract.pdf (69.93 Ko) Télécharger le fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamcis Sup mat.pdf (326.32 Ko) Télécharger le fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics Visio 1.html (848.07 Ko) Télécharger le fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics _ Journal of Chemical Theory and Computation Video 2 Avi.html (848.07 Ko) Télécharger le fichier
Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics _ Journal of Chemical Theory and Computation Video 3 Avi.html (848.07 Ko) Télécharger le fichier
ct3c00280_si_002.avi (5.41 Mo) Télécharger le fichier
ct3c00280_si_003.avi (9.15 Mo) Télécharger le fichier
ct3c00280_si_004.avi (4.62 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-04190303 , version 1 (29-08-2023)

Identifiers

Cite

Thomas Pigeon, Gabriel Stoltz, Manuel Corral-Valero, Ani Anciaux-Sedrakian, Maxime Moreaud, et al.. Computing Surface Reaction Rates by Adaptive Multilevel Splitting Combined with Machine Learning and Ab Initio Molecular Dynamics. Journal of Chemical Theory and Computation, 2023, 19 (12), pp.3538-3550. ⟨10.1021/acs.jctc.3c00280⟩. ⟨hal-04190303⟩
139 View
49 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More