Cited by 147Machine Learning in Materials ScienceAdvanced Chemical Physics StudiesModel Reduction and Neural Networks

Active learning of reactive Bayesian force fields applied to heterogeneous catalysis dynamics of H/Pt

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Vandermause, Jonathan, Xie, Yu, Lim, Jin Soo, Owen, Cameron J., Kozinsky, Boris·2022·Nature Communications

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Abstract

Atomistic modeling of chemically reactive systems has so far relied on either expensive ab initio methods or bond-order force fields requiring arduous parametrization. Here, we describe a Bayesian active learning framework for autonomous “on-the-fly” training of fast and accurate reactive many-body force fields during molecular dynamics simulations. At each time-step, predictive uncertainties of a sparse Gaussian process are evaluated to automatically determine whether additional ab initio training data are needed. We introduce a general method for mapping trained kernel models onto equivalent polynomial models whose prediction cost is much lower and independent of the training set size. As a demonstration, we perform direct two-phase simulations of heterogeneous H 2 turnover on the Pt(111) catalyst surface at chemical accuracy. The model trains itself in three days and performs at twice the speed of a ReaxFF model, while maintaining much higher fidelity to DFT and excellent agreement with experiment.

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  • Reactive analytical potentials such as ReaxFF have limited transferability to systems with different chemical composition due to their fixed functional form.

    “A standard tool for accelerating the reactive sampling in zeolite-water systems, and thus reaching experimentally relevant timescale or realistic levels of model complexity is the class of reactive analytical potentials, for example, ReaxFF19. However, due to their fixed functional form, these potentials have limited transferability to systems with different chemical composition20.”

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  1. [52]Bishop, C. M. Pattern Recognition and Machine Learning (Springer, 2006).

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Authors
Vandermause, J., Xie, Y., Lim, J. S., Owen, C. J., & Kozinsky, B.
Affiliations
Harvard University (US)
Corresponding author
  • Vandermause, Jonathan
  • Kozinsky, Boris
Venue
Nature Communications
Published
2022-09-02
Volume
13
Issue
1
Pages
5183-5183
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4294316513
Cited by
147
References
73
Citations by year
2026: 25 · 2025: 45 · 2024: 41 · 2023: 32 · 2022: 3 · 2021: 1
FWCI
8.50
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Robert Bosch
  • National Science Foundation (1808162, DGE1745303)
  • U.S. Department of Energy (DE-SC0020128, DE-SC0012573)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Model Reduction and Neural Networks
Keywords
reactive force field, Bayesian active learning, heterogeneous catalysis, polynomial surrogate models

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