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Dynamics of supercooled water in various mesopore sizes
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10.1063/1.2429065
/content/aip/journal/jcp/126/4/10.1063/1.2429065
http://aip.metastore.ingenta.com/content/aip/journal/jcp/126/4/10.1063/1.2429065
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Top: Temperature-dependent water distribution in MCM-41 sample of pore size with 11.1% water loading (▴) and 20.0% water loading (●). The open triangles and circles (▵ and 엯) represent the corresponding distributions for 11.1% and 20.0% water loadings, respectively. Bottom: Temperature-dependent motional correlation times and obtained in MCM-41 samples of pore size with 11.1% and 20.0% water loadings as indicated.

Image of FIG. 2.
FIG. 2.

Top: Temperature-dependent water distribution in MCM-41 sample of pore size with 11.1% water loading (▴) and 20.0% water loading (●). The open circles (엯) represent the corresponding distribution of 20.0% loaded sample. It should be noted that the contribution of in 11.1% water loading sample is negligibly small. Bottom: Temperature-dependent motional correlation times and at slow sites obtained in MCM-41 samples of pore size with 11.1% and 20.0% water loadings as indicated.

Image of FIG. 3.
FIG. 3.

Top: Temperature-dependent water distribution in MCM-41 sample of pore size with 11.1% water loading (▴) and 20.0% water loading (●). The open circles (엯) representing the distribution of 20.0% loaded sample are also depicted for comparison but the contribution of in 11.1% loaded sample is too small to be shown in the figure. Bottom: Temperature-dependent motional correlation times and at slow site obtained in MCM-41 samples of pore size with 11.1% and 20.0% water loadings as indicated.

Image of FIG. 4.
FIG. 4.

Temperature-dependent reorientational motional correlation time of water at site for (a) 20.0% and (b) 11.1% loaded MCM-41 samples with pore diameter of . By power law fitting, for 20.0% and 11.1% loaded MCM-41 samples we obtained with and with , respectively. For comparison purpose, the calculated power law curves of with (a) and (b) used for bulk are displayed also.

Image of FIG. 5.
FIG. 5.

Temperature-dependent reorientational correlation time of water at site for (a) 20.0% and (b) 11.1% loaded MCM-41 samples with pore diameter of . In (a) the data were fitted by both power laws ( with and with ). 20.0% loaded sample presents an excellent agreement with Arrhenius-type fitting while the data in 11.1% loading MCM-41 sample remain in agreement with power law behavior.

Image of FIG. 6.
FIG. 6.

(a) The Arrhenius plot of reorientational correlation time of water at site is displayed between 220 and for 20.0% loaded MCM-41 samples of pore size, while (b) the data for 11.1% loaded MCM-41 samples of pore size show power-law dependency with and .

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/content/aip/journal/jcp/126/4/10.1063/1.2429065
2007-01-23
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dynamics of supercooled water in various mesopore sizes
http://aip.metastore.ingenta.com/content/aip/journal/jcp/126/4/10.1063/1.2429065
10.1063/1.2429065
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