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Catalytic Activity and Stability of Two-Dimensional Materials for the Hydrogen Evolution Reaction
journal contribution
posted on 2020-02-20, 20:46 authored by Naiwrit Karmodak, Oliviero AndreussiThe
catalytic performances of the surfaces of two-dimensional (2D)
materials are investigated by means of accurate computational thermodynamics
approaches, based on first-principles simulations. Reliable multiscale
continuum embedding models are used to capture the effects of electrochemical
environments on the catalytic activity and stability of the materials.
The proposed simulation workflow allowed us to screen a large database
of candidate 2D compounds, composed of 258 materials that have been
recently characterized by simulations as easily exfoliable. Out of
the starting database, 15 promising electrocatalysts for the hydrogen
evolution reaction (HER) are identified. Among these compounds, CoO2 and FeS show the lowest overpotentials and considerable aqueous
stability at acidic pH.
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stabilityelectrochemical environments258 materialsFeS showCatalytic ActivityCoO 2simulation workflowHERcandidate 2 D compoundshydrogen evolution reactionReliable multiscale continuum embedding modelsthermodynamics approachesTwo-Dimensional MaterialsHydrogen Evolution Reactionacidic pHfirst-principles simulations
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