Matches in SemOpenAlex for { <https://semopenalex.org/work/W4360843920> ?p ?o ?g. }
- W4360843920 abstract "Externally applied electric fields in liquid water can induce a plethora of effects with wide implications in electrochemistry and hydrogen-based technologies. Although some effort has been made to elucidate the thermodynamics associated with the application of electric fields in aqueous systems, to the best of our knowledge, field-induced effects on the total and local entropy of bulk water have never been presented so far. Here, we report on classical TIP4P/2005 and ab initio molecular dynamics simulations measuring entropic contributions carried by diverse field intensities in liquid water at room temperature. We find that strong fields are capable of aligning large fractions of molecular dipoles. Nevertheless, the order-maker action of the field leads to quite modest entropy reductions in classical simulations. Albeit more significant variations are recorded during first-principles simulations, the associated entropy modifications are small compared to the entropy change involved in the freezing phenomenon, even at intense fields slightly beneath the molecular dissociation threshold. This finding further corroborates the idea that electrofreezing (i.e., the electric-field-induced crystallization) cannot take place in bulk water at room temperature. In addition, here, we propose a molecular-dynamics-based analysis (3D-2PT) that spatially resolves the local entropy and the number density of bulk water under an electric field, which enables us to map their field-induced changes in the environment of reference H2O molecules. By returning detailed spatial maps of the local order, the proposed approach is capable of establishing a link between entropic and structural modifications with atomistic resolution." @default.
- W4360843920 created "2023-03-25" @default.
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- W4360843920 date "2023-05-08" @default.
- W4360843920 modified "2023-10-12" @default.
- W4360843920 title "Electric-field induced entropic effects in liquid water" @default.
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- W4360843920 doi "https://doi.org/10.1063/5.0139460" @default.
- W4360843920 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37154276" @default.
- W4360843920 hasPublicationYear "2023" @default.
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