Hydration-dependent dynamics of deeply cooled water under strong confinement
We have measured the hydration-level dependence of the single-particle dynamics of water confined in the ordered mesoporous silica MCM-41. The dynamic crossover observed at full hydration is absent at monolayer hydration. The monolayer dynamics are significantly slower than those of water in a fully...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/89038 https://orcid.org/0000-0001-6588-2428 |
| _version_ | 1811080919062151168 |
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| author | Bertrand, Christopher E. Liu, K.-H. Mamontov, Eugene Chen, Sow-Hsin |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Bertrand, Christopher E. Liu, K.-H. Mamontov, Eugene Chen, Sow-Hsin |
| author_sort | Bertrand, Christopher E. |
| collection | MIT |
| description | We have measured the hydration-level dependence of the single-particle dynamics of water confined in the ordered mesoporous silica MCM-41. The dynamic crossover observed at full hydration is absent at monolayer hydration. The monolayer dynamics are significantly slower than those of water in a fully hydrated pore at ambient temperatures. At low temperatures, the opposite is found to be true. These results underscore the importance of water's tetrahedral hydrogen-bond network in accounting for its low temperature dynamic properties. |
| first_indexed | 2024-09-23T11:38:56Z |
| format | Article |
| id | mit-1721.1/89038 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:38:56Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/890382022-10-01T04:59:45Z Hydration-dependent dynamics of deeply cooled water under strong confinement Bertrand, Christopher E. Liu, K.-H. Mamontov, Eugene Chen, Sow-Hsin Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Chen, Sow-Hsin Bertrand, Christopher E. Liu, K.-H. We have measured the hydration-level dependence of the single-particle dynamics of water confined in the ordered mesoporous silica MCM-41. The dynamic crossover observed at full hydration is absent at monolayer hydration. The monolayer dynamics are significantly slower than those of water in a fully hydrated pore at ambient temperatures. At low temperatures, the opposite is found to be true. These results underscore the importance of water's tetrahedral hydrogen-bond network in accounting for its low temperature dynamic properties. United States. Dept. of Energy. Office of Basic Energy Sciences (Contract DE-FG02-90ER45429) 2014-08-25T18:37:32Z 2014-08-25T18:37:32Z 2013-04 2013-03 Article http://purl.org/eprint/type/JournalArticle 1539-3755 1550-2376 http://hdl.handle.net/1721.1/89038 Bertrand, C. E., K.-H. Liu, E. Mamontov, and S.-H. Chen. “Hydration-Dependent Dynamics of Deeply Cooled Water Under Strong Confinement.” Phys. Rev. E 87, no. 4 (April 2013). © 2013 American Physical Society https://orcid.org/0000-0001-6588-2428 en_US http://dx.doi.org/10.1103/PhysRevE.87.042312 Physical Review E Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Bertrand, Christopher E. Liu, K.-H. Mamontov, Eugene Chen, Sow-Hsin Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title | Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title_full | Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title_fullStr | Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title_full_unstemmed | Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title_short | Hydration-dependent dynamics of deeply cooled water under strong confinement |
| title_sort | hydration dependent dynamics of deeply cooled water under strong confinement |
| url | http://hdl.handle.net/1721.1/89038 https://orcid.org/0000-0001-6588-2428 |
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