Anomalous behavior of the homogeneous ice nucleation rate in "no-man's land"

Laksmono, H, McQueen, T, Sellberg, J and Martin, A 2015, 'Anomalous behavior of the homogeneous ice nucleation rate in "no-man's land"', Journal of Physical Chemistry Letters, vol. 6, no. 14, pp. 2826-2832.


Document type: Journal Article
Collection: Journal Articles

Title Anomalous behavior of the homogeneous ice nucleation rate in "no-man's land"
Author(s) Laksmono, H
McQueen, T
Sellberg, J
Martin, A
Year 2015
Journal name Journal of Physical Chemistry Letters
Volume number 6
Issue number 14
Start page 2826
End page 2832
Total pages 7
Publisher American Chemical Society
Abstract We present an analysis of ice nucleation kinetics from near-ambient pressure water as temperature decreases below the homogeneous limit TH by cooling micrometer-sized droplets (microdroplets) evaporatively at 103104 K/s and probing the structure ultrafast using femtosecond pulses from the Linac Coherent Light Source (LCLS) free-electron X-ray laser. Below 232 K, we observed a slower nucleation rate increase with decreasing temperature than anticipated from previous measurements, which we suggest is due to the rapid decrease in waters diffusivity. This is consistent with earlier findings that microdroplets do not crystallize at <227 K, but vitrify at cooling rates of 106107 K/s. We also hypothesize that the slower increase in the nucleation rate is connected with the proposed fragile-to-strong transition anomaly in water.
Subject Condensed Matter Imaging
Keyword(s) Diffusivity
Fragile to strong liquid transition
Homogeneous ice nucleation
Supercooled water
X-ray free-electron laser
DOI - identifier 10.1021/acs.jpclett.5b01164
Copyright notice © 2015 American Chemical Society.
ISSN 1948-7185
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