Low-temperature dynamics of water confined in a hydrophobic mesoporous material
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Chu-2010-Low-temperature dyna.pdf
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Author(s)
Chu, Xiang-qiang
Lu, Kao-Hsiang
Tyagi, Madhu Sudan
Mou, Chung-Yuan
Chen, Sow-Hsin
Date Issued
August 2010
Journal
Physical Review E
Publisher
American Physical Society
Citation
Chu, Xiang-qiang. et al. "Low-temperature dynamics of water confined in a hydrophobic mesoporous material." Physical Review E 82.2 (2010): 020501(R). © 2010 The American Physical Society
Version
Final published version
Abstract
Quasielastic neutron scattering was used to study the dynamics of three-dimensional confined water in a hydrophobic mesoporous material designated as CMK-1 in the temperature range from 250 to 170 K. We observe a crossover phenomenon at temperature TL. We find that TL of water confined in CMK-1 occurs in between previous observations of one-dimensional confined water in materials with different hydrophilicities. This provides the first evidence that besides the obvious surface effect brought about by the hydrophobic confinements, TL is also dependent on the dimensionality of the geometry of the confinement.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevE.82.020501
