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Tackling electrified interfaces using density functional theory and machine learning

Trulli
Modeling solvation effects and interfaces. Solid-liquid interfaces are approached from atomistic simulations, using either a force-field based description or machine learning approaches. Further coarse-graining of atomistic insights leads to fast and transferable continuum solvation schemes.

Recently, a number of studies have found that electrochemical processes in batteries and electrolyzers are highly sensitive to the electrified solid-liquid interface. In order to accurately predict reaction kinetics or the stability of electrochemical system compounds, it is essential to develop methods that can model such interfaces on a quantum accuracy level. In addition, for most state-of-the-art energy systems such as carbon materials, single atom catalysts, 2D materials (MoS2, etc.) or semiconductors the effect of electrification remains largely unknown and could potentially lead to the development of new technologies. In this project, we develop and apply several computational techniques from continuum over classical approaches up to full first-principles machine learning to upscale quantum chemical calculations with Density Functional Theory towards a full representation of the solid-liquid interface and its realistic reaction environment.


Apr 5, 2022

Related research projects/funds:
  • NRF (한국연구재단) Grant No. 2021R1C1C1008776 (신진연구)
  • Institute for Basic Science (IBS) for Molecular Spectroscopy and Dynamics

Subgroup members:
Stefan Ringe, Hafiz Ghulam Abbas, 한승창
Seungchang Han
, 류연경
Yeonkyeong Ryu
, Seoyeong Kim

Related publications:
  • S. Ringe†* et al., Understanding cation effects in electrochemical CO2 reduction, Energy Environ. Sci. 2019, 12, 3001 - 3014.
  • S. Shin† et al., On the importance of the electric double layer structure in aqueous electrocatalysis, Nat. Commun. 2022, 13, 174.
  • S. Ringe†* et al., Implicit Solvation Methods for Catalysis at Electrified Interfaces, Chem. Rev. 2022, , .
  • Y. Wu† et al., A Two-Dimensional MoS2 Catalysis Transistor by Solid-State Ion Gating Manipulation and Adjustment (SIGMA), Nano Lett. 2019, 19, 7293 - 7300.

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