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Nanoscale insights into vibration-induced heterogeneous ice nucleation
,
Rohit Pillai,
Saikat Datta
Nanoscale, Volume: 17, Issue: 23, Pages: 14172 - 14182
Swansea University Author:
Saikat Datta
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DOI (Published version): 10.1039/d5nr00326a
Abstract
Accelerating ice nucleation in confined liquids is desirable in applications like food freezing, cryopreservation, and ice casting, but current techniques have their limitations. The use of high-frequency acoustic waves (AW) is a promising alternative but remains poorly-understood. We employ molecul...
| Published in: | Nanoscale |
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| ISSN: | 2040-3364 2040-3372 |
| Published: |
Royal Society of Chemistry (RSC)
2025
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa69605 |
| Abstract: |
Accelerating ice nucleation in confined liquids is desirable in applications like food freezing, cryopreservation, and ice casting, but current techniques have their limitations. The use of high-frequency acoustic waves (AW) is a promising alternative but remains poorly-understood. We employ molecular dynamics simulations to investigate AW-induced ice nucleation within confined nanopores. By systematically varying vibrational amplitude and frequency, we identify five distinct nucleation regimes, forming a comprehensive regime map that links these parameters to nucleation outcomes. Our simulations reveal that ice nucleation is preceded by formation of ice-like clusters, and is strongly influenced by negative pressure induced by surface vibrations. A strain-based criterion is introduced to generalize the findings to larger lengthscales. This enables us to propose a universal framework for controlling ice formation via surface vibrations in industrial applications. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
S. D. acknowledges the support of the Leverhulme Trust through the award of an Early Career Fellowship ECF-2021-383. |
| Issue: |
23 |
| Start Page: |
14172 |
| End Page: |
14182 |